1,004 accepted98% rate15.0 hours
1,004 accepted98% rate15.0 hours
What is the atomic number of gold? Answer with the whole number only.
The gold coin first minted in Florence in 1252 is known as the what? Answer with the single word only, in lowercase.
How many shillings made up one pound sterling before decimalisation? Answer with the whole number only.
In what year did Coinbase list its shares on the Nasdaq? Answer with the four-digit year only.
Which US city's mint uses the mint mark 'D'? Answer with the city name only.
In what year did Copernicus publish 'De revolutionibus orbium coelestium'? 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.
What is Litecoin's target block time in seconds? Answer with the whole number only.
Who discovered the atomic nucleus through the gold foil experiment? Answer with the surname only.
What is the term for the 'heads' side of a coin? Answer with the single word only, in lowercase.
In what year did the 'Tide Pod challenge' meme spread? Answer with the four-digit year only.
How many valence electrons does a carbon atom have? Answer with the whole number only.
The British 50p coin is a perfect circle. Answer true or false.
Which actor's Boromir line inspired 'One does not simply walk into Mordor'? Answer with the surname only.
What is the atomic number of sodium? Answer with the whole number 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.
In what year was the Bored Ape Yacht Club NFT collection launched? Answer with the four-digit year only.