{"question":"What is staking?","answer":"Staking locks tokens to help secure the network.","difficulty":"beginner"}
{"question":"What is a validator?","answer":"A validator verifies blockchain transactions.","difficulty":"beginner"}
{"question":"What is a DAO?","answer":"A DAO is a decentralized organization governed by smart contracts.","difficulty":"intermediate"}
{"question":"What is Layer 2?","answer":"Layer 2 improves blockchain scalability.","difficulty":"intermediate"}
{"question":"What is MEV?","answer":"MEV is profit extracted by reordering transactions.","difficulty":"advanced"}
