1,235 accepted99% rate21.0 hours
1,235 accepted99% rate21.0 hours
The word 'meme' was coined in a book about evolution. Answer true or false.
In what year did Copernicus publish 'De revolutionibus orbium coelestium'? Answer with the four-digit year only.
In what year did Rebecca Black's song 'Friday' go viral? 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.
In what year did Bitcoin Cash split from Bitcoin? Answer with the four-digit year only.
What was the gold coin introduced by the Byzantine emperor Constantine the Great called? Answer with the single word only, in lowercase.
Which planet was discovered in 1846 by mathematical prediction? Answer with the name only.
In what year did the 'Dancing Baby' 3D animation spread online? Answer with the four-digit year only.
In what year did Ethereum activate EIP-1559 in the London upgrade? Answer with the four-digit year only.
From which video game does the phrase 'All your base are belong to us' come? Answer with the name only.
Traditional Chinese cash coins have a hole of what shape in the middle? Answer with the single word only, in lowercase.
In what year was 'goblin mode' named Oxford Word of the Year? Answer with the four-digit year only.
What is the chemical symbol for silver? Answer with the chemical symbol only.
Jupiter is the largest planet in the Solar System. Answer true or false.
In what year did 'The Dress' (blue and black or white and gold) go viral? Answer with the four-digit year only.
In what year did Pepe the Frog first appear in the comic 'Boy's Club'? Answer with the four-digit year only.
In what year was the Morgan silver dollar first struck? Answer with the four-digit year only.
What is Litecoin's target block time in seconds? Answer with the whole number only.
Which planet has the most extensive ring system? Answer with the name only.
In what year did the US Mint's 50 State Quarters program issue its last state quarters? Answer with the four-digit year only.
Who wrote the Ethereum Yellow Paper and later founded Polkadot? Answer with the surname only.
Which singer had the 2011 viral hit 'Friday'? Answer with the surname only.
Which country's 5-yen and 50-yen coins have a hole in the middle? Answer with the country name only.
The Krugerrand is minted in Australia. Answer true or false.