instruction stringlengths 15 30k |
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[![enter image description here][1]][1]
> <i>Dear Puzzling,
>
> How have you been? I'm excited to tell you about my new trip. For the next three months or so, I will be visiting a total of 65 exotic destinations. I’m so happy to be travelling again! And of course I’m equally happy to be sharing the stories with y... |
Previous Level:- https://puzzling.stackexchange.com/questions/104880/lasers-colour-converters-level-10?rq=1 <br/>
Also before solving this, you must take a look at this level:- https://puzzling.stackexchange.com/questions/104822/lasers-double-sided-mirrors-level-8
This will be a more lengthy puzzle, here I will gen... |
CHildren lie and say they have my prefix when they don't want to go to school.
Dating singles will use my infix to refer to the 2 of them.
Wise men will examine my suffix so that they could improve upon themselves.
Every children's book needs someone doing my whole word.
What am I? |
CHildren lie and say they have my prefix when they don't want to go to school.
>! They might say they are ILL
Dating singles will use my infix to refer to the 2 of them.
>! The two of them are US
Wise men will examine my suffix so that they could improve upon themselves.
>! They can examine their RATING to improve
E... |
>
>
>A proverb and a myth, I will tell you a tale of two teams.<br />
I saw them last night in my dreams.<br />
The one team was sleeker, but started much weaker,<br />
The other was strong from the start.<br /><br />
Yes, the other was strong from the start.<br />
But we found that they had less heart.<br />
... |
Children lie and say they have my prefix when they don't want to go to school.
Dating singles will use my infix to refer to the 2 of them.
Wise men will examine my suffix so that they could improve upon themselves.
Every children's book needs someone doing my whole word.
What am I? |
Children lie and say they have my prefix when they don't want to go to school.
>! They might say they are ILL
Dating singles will use my infix to refer to the 2 of them.
>! The two of them are US
Wise men will examine my suffix so that they could improve upon themselves.
>! They can examine their RATING to imp... |
The context is that of a pandemic that is spreading wildly and requiring global vaccination of the population.
You are working in a distribution center for the vaccines.
One day you have been requested to prepare and deliver 40 boxes of vaccines to 3 vaccination centers. You have a minivan and will do a roundtri... |
The context is that of a pandemic that is spreading wildly and requiring global vaccination of the population.
You are working in a distribution center for the vaccines.
One day you have been requested to prepare and deliver 40 boxes of vaccines to 3 vaccination centers. You have a minivan and will do a roundtri... |
What is “it”? (My first riddle) |
What is “it”? If you eat it, you’ll die |
(In this answer, I'm going to assume readers already know how the puzzle works.)
First image:
>! These sets seem to be playing with ambiguity, and double interpretations.
>!
>! In the top right, the `TIME` hexagon can also spell `EMIT`. And this turns out to be necessary, because the puzzle containing it h... |
>I run uphill faster than downhill
People don't touch me, that's chill
I tend to destroy more than create
But I can be used to make something great
I am loud and I eat, but I have no mouth
I travel around, west, east, north, or south
People hate me, yet love me as well
The smaller, the better, that... |
Uphill, downhill, what am I? |
(In this answer, I'm going to assume readers already know how the puzzle works.)
First image:
>! These sets seem to be playing with ambiguity, and double interpretations.
>!
>! In the top right, the `TIME` hexagon can also spell `EMIT`. And this turns out to be necessary, because the puzzle containing it h... |
What scientific discovery is represented by the following image?
NOTE: Some tags have been deliberately omitted since I don't wanna reveal too much
[![enter image description here][1]][1]
[1]: https://i.stack.imgur.com/WTysC.png |
This is
>! Governmentium
33-14-16-73-7-117 translates to `As Si S Ta N Ts` - assistants.
??-15-92-22-99 translates to `?? P U Ti Es` - __puties, which I guessed as "deputies".
Given that this was about chemistry, and I know $\text{n}^0$ means neutrons in that context, I looked up "assistant deputy neutron" ... |
This puzzle serves as the more concrete sequel to my [previous post][1]; in particular, see that post for the rules of the game. Rather than (implicitly) demanding a description of a polynomial-time algorithm for solving all such puzzles—an answer I myself didn't/still don't have—this post has a smaller, well-defined s... |
This puzzle serves as the more concrete sequel to my [previous post][1]; in particular, see that post for the rules of the game. Rather than (implicitly) demanding a description of a polynomial-time algorithm for solving all such puzzles—an answer I myself didn't/still don't have—this post has a smaller, well-defined s... |
This is
>! Governmentium
33-14-16-73-7-117 translates to `As Si S Ta N Ts` - assistants.
??-15-92-22-99 translates to `?? P U Ti Es` - __puties, which I guessed as "deputies".
Given that this was about chemistry, and I know $\text{n}^0$ means neutrons in that context, I looked up "assistant deputy neutron" ... |
Can you solve this puzzle I created last week?
[![The Mexican Puzzle][1]][1]
[1]: https://i.stack.imgur.com/bqnE8.jpg |
Try to solve the “Mexican Puzzle”? |
The following question has been described to me:
>The diagram below is to be filled in so that each white square contains a different whole number from 1 to 12 (inclusive) and the four numbers in the squares along each edge have the same total.
>
>[![magic_square][1]][1]
The question is:
>In how many differe... |
The following question has been described to me by my math teacher:
>The diagram below is to be filled in so that each white square contains a different whole number from 1 to 12 (inclusive) and the four numbers in the squares along each edge have the same total.
>
>[![magic_square][1]][1]
The question is:
>... |
There are 16 baskets: 4 red, 4 blue, 4 green and 4 black. Each basket contains a ball from one of the 4 colours (see image). You can pick up a ball from one basket and swap it with a ball from another basket. What is least number of swaps needed to make every basket contain a ball of the same colour as the basket?
[... |
A group of friends challenged Mark, the brightest among them, to an escape room challenge (two rooms). They know Mark have a wide range of knowledge. But for this one they thought even the bright Mark would have a hard time figuring out the answer.
The instructions were following:
"You have 30 minutes to solve pa... |
Whenever you hear im here, you're filled with dread. When you see me, your heart breaks. Everyone fears me. What am I? |
> Whenever you hear I'm here, you're filled with dread. When you see me, your heart breaks. Everyone fears me. What am I?
Everyone has experienced this at least once. |
Is it your eyes?
Your eyes shine whenever you do something well.
Your eyes meet another's gaze.
Your eyelashes keep out dirt and dust.
|
> The words on the page
Arranged in neat lines
Like a play on a stage
When done well - there I shine.
>
> On joyful, bright days
And downcast, sad ones too
When you meet someone's gaze
I'll be there, clear and true.
>
> Anger burns and flares out
And I'm there in the hurt
If you yell, sc... |
Is it
>! your eyes?
Explanation:
>! Your eyes shine whenever you do something well.
>!
>! Your eyes meet another's gaze.
>!
>! Your eyelashes keep out dirt and dust.
|
Everyone will do crazy things for me. Change a letter and you lose. What am I? |
Everyone will do crazy things for me. Change a letter and you lose. What am I?
Hint: everyone has this at one or another in life. |
My first '[Riley Riddle](https://puzzling.stackexchange.com/questions/62349/my-prefix-is-food-my-suffix-is-rude)':
> My prefix is dishonest, in everything they say,
>
> My infix is the price, that my suffix asks to pay.
**What am I?** |
For you to answer this, you must know that it is you.
>! Not sure if I understand this part right, but are you a deck of cards?
I have hands, but can't point.
>! sets of poker cards are called hands and there are "hand games" in Skat or Rommé.
I make a sound without a mouth,
>! mixing the cards makes a spe... |
Here is the proverbial picture worth a 1000 words.
>! [![enter image description here][4]][4]
>!
>! You can see how it works for disks 2, 5, 8.
>! Disks 4, 1, 7 are mirror images of 2, 5, 8.
And here are the 1000 words explaining the picture.
>! The illustration below shows 3 hexagons.
>! Each hexagon... |
The fugitive is at the origin. He moves at a speed of 100. You have a guard at every integer coordinate except the origin. A guard's speed is 1. The fugitive and your guards move simultaneously and continuously. If he's within 1/100 distance from a guard, the fugitive is caught and you win the game.
[![enter image d... |
A heuristic argument to see which ball park we'll likely be talking about:
>! To make a tight wall we need 50 guards per unit length, so if we recruit opportunistically we'll deplete a +/- 25 strip around the prospective wall with the farthest away cops arriving after 25 seconds.
>! The fugitive can travel 2,500 ... |
This is a variation on the classic Slitherlink Puzzle. However, instead of creating one loop, you must create 2 separate loops.
The two loops can not share any edges, however they can cross or meet on vertices.
[![enter image description here][1]][1]
The two loops each have their own clues. As is standard, the... |
> There are 3 floors of a building.
>
> There are 3 sets of 4 people going to every floor one-by-one.
>
> There is a pill on the ground, which means nothing.
>
> What does this mean? |
Find 4 consecutive numbers that divide , , , respectively, where , , , and are also 4 consecutive positive numbers greater than 1, or prove it's impossible.
Bonus: What if w > the first consecutive number / 2? |
> There are 3 floors of a building.
>
> There are 3 sets of 4 people going to every floor one-by-one.
>
> There is a "pill" on the ground, which means nothing.
>
> What does this mean?
Hint 1:
>! Start with the third statement then you can go to 1 and 2. |
A simple pattern puzzle
What is the number in the ?? box? Why? No programming please.
[![enter image description here][1]][1]
[1]: https://i.stack.imgur.com/zJKGC.jpg |
What number goes in the ?? box? |
**Do you have what it takes to compete in the famous Vega Classic?**
Looking for skilled navigators. Apply below.
You have a craft that is capable of 10m/s$^2$ acceleration in any direction, and we're looking for the fasted time from Vega Starship 1 to Vega Starship 2 around the beacon.
[![Vega Classic][1]][1]... |
>I have 4 brothers
>My 1st brother is a bother, and points everything out
>My 2nd brother is tall, and quite foul at heart.
>My 3rd brother is about as tall as my 1st, and quite decorative.
>My 4th brother is short and skinny, but among the strongest of us all.
>I am short and squat and weak, but am by f... |
5 Brothers, what are we? |
I think your are
>! the five fingers of a hand
My 1st brother is a bother, and points everything out
>! The index is used to point at something
My 2nd brother is tall, and quite foul at heart.
>! The middle finger is usually the longest
>! (sorry, as a non-native speaker, I did not understand "foul at h... |
I think your are
>! the five fingers of a hand
My 1st brother is a bother, and points everything out
>! The index is used to point at something
My 2nd brother is tall, and quite foul at heart.
>! The middle finger is usually the longest
>! (sorry, as a non-native speaker, I did not understand "foul at h... |
I think your are
>! the five fingers of a hand
My 1st brother is a bother, and points everything out
>! The index is used to point at something
My 2nd brother is tall, and quite foul at heart.
>! The middle finger is usually the longest
>! (sorry, as a non-native speaker, I did not understand "foul at h... |
>I am present at school
>But can't stand pools
>Water tends to scare me
>But croutons appease me
>I frolic in class
>But can't ever pass
>Work can't be for me
>But climbing is my glee
>I crow in all lines
>In each, just one time
What am I? |
Present at school... Who am I? |
>I am present at school
>But can't stand pools
>Water tends to scare me
>But croutons appease me
>I frolic in class
>But can't ever pass
>Work can't be for me
>But climbing is my glee
>I crow in all lines
>In each, just one time
What am I? |
>I have a bow, but no set of strings
I have a collar, but I'm not a pet thing
I have a stem, but I'm not from a pot
I have a blade, just not from Camelot
I am often scraped and dropped and abused
But not unkindly, I have my own use
I open what is precious, expensive or dear
Except for a pick, there... |
I have a bow, what am I? |
>I am present at school
>But can't stand pools
>Water tends to scare me
>But croutons appease me
>I frolik in class
>But can't ever pass
>Work can't be for me
>But climbing is my glee
>I crow in all lines
>In each, just one time
What am I? |
>I go into your mouth hard and dry
And I come out limp and moist
I'm often a pinkish color
But of course, my color may differ
As may my size and flavor
Indeed, my very texture might vary
As well as the smell I carry
I'm not obscene
What can I be? |
Hard and dry, limp and moist, what can I be? |
>! A jawbreaker
>! I go into your mouth hard and dry , they start hard and dry
>! And I come out limp and moist ,the core is usually a gum center.
>! I'm often a pinkish color ,again referencing the gum center.
>! But of course, my color may differ, many jawbreakers come in different colored layers
>... |
>! A jawbreaker
>! I go into your mouth hard and dry; they start hard and dry
>! And I come out limp and moist: the core is usually a gum center.
>! I'm often a pinkish color: again referencing the gum center.
>! But of course, my color may differ: many jawbreakers come in different colored layers
... |
>Wrapped around and around
My good friend that spins in bounds
Without me, he'll be removed
By another with me on the groove
I'm quite tenacious, yes I am
Clinging on while I still can
I keep many people safe
Unless on wet or icy ways
What am I? |
Tenacious, what am I? |
_This puzzle is based off and inspired by the [What is a Word™](https://puzzling.stackexchange.com/search?tab=relevance&q=what%20is%20a%20word%E2%84%A2) and [What is a Phrase™](https://puzzling.stackexchange.com/search?tab=relevance&q=what%20is%20a%20phrase%E2%84%A2) series started by [JLee](https://puzzling.stackexcha... |
What is a Mediocre Word™? |
>Ho, hum!
I'm grand and tall!
Sharp and dull, I am not small!
Kick my legs, but I won't fall!
Larger than a market stall!
Some see me balance atop ball!
But I prefer the grass and all!
Asia, Africa Central!
What am I? |
Ho, Hum! What Am I? |
>I go into your mouth hard and dry
And I come out limp and moist
I'm often a pinkish color
But of course, my color may differ
As may my size and flavor
Indeed, my very texture might vary
As well as the smell I carry
I'm not obscene
What can I be?
(Edit: I realized that this question has s... |
>Without me, one can see nothing
With too much of me, one can see nothing
With enough of me, one can see everything
Colors are thanks to me
I am why things can see
What am I? |
Are you
>! Light?
Without me, one can see nothing
>! Because it’s dark
With too much of me, one can see nothing
>! Blinding light
With enough of me, one can see everything
>! we can see with an appropriate amount of light
Colors are thanks to me
>! Colours are wavelengths of light
I am why things can see
>! We ca... |
Not sure if I've taken this too literally, but:
>! Rubber
Wrapped around and around <br>
>! Rubber is wrapped around a tire
My good friend that spins in bounds <br>
>! The tire is a "friend" of rubber and spins
Without me, he'll be removed <br>
>! Tires with the rubber worn out are dangerous/useless and r... |
>I am a cube
Made up of cubes
Twenty six cubes
Colorful cubes
Spinning cubes
Sliding cubes
But always a cube
A large, cubed cube
Not a ruby cube
And not a phoenix cube
But a bright cube
With-lot's-of-colors cube
What kind of cube am I?
|
Cubes, what am I? |
>[![https://i.stack.imgur.com/4uKL8.png][1]][1]
There are $72$ criminals in a jail in $8$ cells as shown in the picture above. There are $9$ criminals in each cell. There are $4$ guards. Each of them watch over the $4$ corridors. As there is a door between every two adjacent cells, the criminals of a cell can go t... |
How did the criminals escape from the jail? |
> If $O^3=DAD$ and $(IM)^2=MOM$, then what is $MAID$? |
If O^3=DAD and (IM)^2=MOM, then what is MAID? |
>Despite being well-decorated, stylish, and sturdy
I'm often dark inside, and
When put into use, I am dark all around
I am destined to carry Something (that will soon turn foul)
To keep what is inside safe from what is without;
Not more than One in my lifespan
As It is often Something once precious an... |
Foul, foul! What am I? |
If I understand this correctly,
>! From the first two codes, we can say that 2,8,3,4 are not correct. Hence, either 1 or 7 is in the actual code.
>! From the third code, we can say that **5 is definitely part of the actual code**. It's just not in the 2nd position.
>! From the 5th code(if I understand correctl... |
*(Disclaimer: I remember a puzzle like this I did a long time ago, but this isn't a direct copy of the puzzle, only it's formatting. If this is appears to be a copy of another riddle, I will simply say that this mimics only the format, while not the actual puzzle. Please enjoy.)*
Jim and John are brothers. One day, ... |
How old are Jim and John? |
Fifteen related guests visited a restaurant and got into an argument about who was the greatest among them. To settle the dispute, they asked the owner to decide.
He thought for a moment, then said “While you are eating, write down as many stars as you can name. After the meal I will tally the results.”
The guest... |
What is the minimum number of 1/4 turns of a solved 2x2 Rubik’s cube such that no face will have two tiles of the same color?
(I do not have this puzzle’s solution.) |
What is the minimum number of 1/4 turns of a solved 2x2 Rubik’s cube, such that no face will have two tiles of the same color?
(I do not have this puzzle’s solution.) |
> If $O^3=DAD$ and $(IM)^2=MOM$, then what is $MAID$?
**Source:** I don't have the original source of the problem. But I found this on the book *Neurone Abaro Onuronon* by *Muhammad Zafar Iqbal*. |
>There is a desert which can be crossed only by walking and this takes six days. The explorers of the desert can carry at most four days' water and food. If they want, they can take *helpers* with them. **What is the minimum number of *helpers* that an explorer need to cross the desert?**
["*If the explorer takes on... |
What is the minimum number of helpers that an explorer need to cross the desert? |
>There is a desert which can be crossed only by walking and this takes six days. The explorers of the desert can carry at most four days' water and food. If they want, they can take *helpers* with them. **What is the minimum number of *helpers* that an explorer need to cross the desert?**
["*If the explorer takes on... |
>These are pentominoes, with letter codes:
>
>[![enter image description here][1]][1]
>
> **Create 4 yes/no questions which uniquely classify each pentomino.**
>
> Examples of such questions are:
>
> - Does it have rotational symmetry?
> - Does it have reflection symmetry?
> - Is it the net of an open box?
... |
Imagine we have a 7×7 square, and we want to color it a way such that each row and column has exactly 3 colored squares. How can this be accomplished? |
>I come with time
To most, if not all people
Don't forget, you might get me too
I am a very emotional pendulum
And can cause people to go mad
Remember, I'm not uncommon
Tens of millions is my count
I take what is precious from you
Yet you won't know when I do
What am I? |
What...? Goodness... I must be slipping |
As a tentative guess, are you...
>! old age, by any chance?
> I come with time
To most, if not all people
>! As time passes, people get older; however, some people do die young and don't reach old age.
> Don't forget, you might get me too
>! I mean... hopefully.
> I am a very emotional pendulum... |
Not sure if this kind of reasoning is allowed, but:
>! this seems trivial if we can simply refer to the letter labels themselves. e.g. four questions could be:
>! Q1: Is the letter in TUVXYZ?
>! Q2: Is the letter in FILTUV?
>! Q3: Is the letter in LMNUVX?
>! Q4: Is the letter in MFVY?
Each pentomino ... |
Here my first go:
1. Does it fit (perpendicularly) inside a rectangle smaller than 9 squares of area?
1. Is there a square with more than 2 neighbours?
1. Can you rotate the mirror image of the piece back to the original?
1. Find the longest straight run that isn't a dea... |
Could be
>! Memory Loss
I come with time
>! Stereotypically, older folks tend to get memory loss
To most, if not all people
>! Probably in some form or another
Don't forget, you might get me too
>! Play on words - How are we going to remember if we can't?
I am a very emotional pendulum
>! Memory loss c... |
Could be
>! Memory Loss
I come with time
>! Stereotypically, older folks tend to get memory loss
To most, if not all people
>! Probably in some form or another
Don't forget, you might get me too
>! Play on words - How are we going to remember if we can't?
I am a very emotional pendulum
>! Memory loss c... |
I can
Go with your heart but not with your brain
Mess with your head but not with your hair
Flow with your blood and hang with your shoulder
Stay with your feet but not with your ankle
Who am I? |
> There is a desert which can be crossed only by walking and this takes six days. The explorers of the desert can carry at most four days' water and food. If they want, they can take *helpers* with them. Each helper can also carry at most four days' supply. **What is the minimum number of *helpers* that an explorer nee... |
[![enter image description here][1]][1]
> <i>Dear Puzzling,
>
> How have you been? I'm excited to tell you about my new trip. For the next three months or so, I will be visiting a total of 65 exotic destinations. I’m so happy to be travelling again! And of course I’m equally happy to be sharing the stories with y... |
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