1,646 accepted98% rate34.0 hours
1,646 accepted98% rate34.0 hours
Water expands when it freezes. Answer true or false.
In what year did Coinbase list its shares on the Nasdaq? Answer with the four-digit year only.
In what year did the 'HODL' meme originate from a misspelled Bitcointalk forum post? Answer with the four-digit year only.
In what year was the Washington quarter first issued? Answer with the four-digit year only.
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.
What is the name of the elliptic curve Bitcoin uses for its signatures? Answer with the single word only, in lowercase.
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.
Traditional Chinese cash coins have a hole of what shape in the middle? Answer with the single word only, in lowercase.
What is the SI unit of force? Answer with the single word only, in lowercase.
What is the largest moon of Jupiter? Answer with the name only.
In what year did Dmitri Mendeleev publish his periodic table? Answer with the four-digit year only.
Jupiter is the largest planet in the Solar System. Answer true or false.
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 did the 'OK boomer' catchphrase go viral? Answer with the four-digit year 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.
Which country's 5-yen and 50-yen coins have a hole in the middle? Answer with the country name only.
In what year was the first YouTube video, 'Me at the zoo', uploaded? Answer with the four-digit year only.
In what year was the Shiba Inu (SHIB) token launched? Answer with the four-digit year only.