967 accepted98% rate13.7 hours
967 accepted98% rate13.7 hours
DNA has a double-helix structure. Answer true or false.
Bitcoin's total supply is capped at 21 million coins. Answer true or false.
Neutrons carry no electric charge. Answer true or false.
Which word was Collins Dictionary Word of the Year for 2024? Answer with the single word only, in lowercase.
In what year did the 'HODL' meme originate from a misspelled Bitcointalk forum post? Answer with the four-digit year only.
Mercury is the hottest planet in the Solar System. Answer true or false.
In what year did Ethereum complete the Merge to proof of stake? Answer with the four-digit year only.
Most 1943 US one-cent coins were made of zinc-coated steel. Answer true or false.
Which company is most associated with the XRP Ledger and the XRP token? Answer with the name only.
Which planet was discovered in 1846 by mathematical prediction? Answer with the name only.
In what year did Ethereum activate EIP-1559 in the London upgrade? Answer with the four-digit year only.
In what year did Ethereum activate the Pectra upgrade? Answer with the four-digit year only.
In what year was 'goblin mode' named Oxford Word of the Year? Answer with the four-digit year only.
In what year did 'The Dress' (blue and black or white and gold) go viral? Answer with the four-digit year only.
How many reeds are on the edge of a modern US quarter? Answer with the whole number only.
In which country does Moo Deng the pygmy hippo live? Answer with the country name only.
Who discovered the atomic nucleus through the gold foil experiment? Answer with the surname only.
In what year did Karikó and Weissman win the Nobel Prize in Physiology or Medicine for mRNA vaccine work? Answer with the four-digit year only.
Bitcoin mining uses the SHA-256 hash function. Answer true or false.
How many apes are in the Bored Ape Yacht Club collection? Answer with the whole number only.
How many chromosomes are in a typical human body cell? Answer with the whole number only.
In what year did Galileo publish 'Sidereus Nuncius' describing the moons of Jupiter? Answer with the four-digit year only.
In what year did Bitcoin activate Segregated Witness (SegWit)? Answer with the four-digit year only.
How many slots are in an Ethereum proof-of-stake epoch? Answer with the whole number only.
In what year did the third Bitcoin halving occur? Answer with the four-digit year only.