1,463 accepted99% rate17.1 hours
1,463 accepted99% rate17.1 hours
How many teeth does a typical adult human have, including wisdom teeth? Answer with the whole number only.
Which country issues the Krugerrand gold coin? Answer with the country name only.
Whose portrait appears on the obverse of the US quarter? Answer with the surname only.
The first coins were made in ancient Lydia. Answer true or false.
In what year did the US SEC sue Ripple Labs over XRP sales? Answer with the four-digit year only.
The Sacagawea dollar coin is gold in color. Answer true or false.
Neutrons carry no electric charge. Answer true or false.
Who sang 'Never Gonna Give You Up', the song used in rickrolling? Answer with the surname only.
What is the lightest chemical element? Answer with the single word only, in lowercase.
In what year was the Washington quarter first issued? Answer with the four-digit year only.
In what year was the Coinage Act that established the United States Mint passed? Answer with the four-digit year only.
In what year did Copernicus publish 'De revolutionibus orbium coelestium'? Answer with the four-digit year only.
Which organelle is known as the powerhouse of the cell? Answer with the single word only, in lowercase.
What is the maximum supply of Litecoin, in whole coins? Answer with the whole number only.
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.
Who founded the Tron blockchain? Answer with the surname only.
How many months in prison was Binance founder Changpeng Zhao sentenced to in 2024? Answer with the whole number only.
Mitochondria have their own DNA. Answer true or false.
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.
Which dog breed is the Dogecoin mascot? Answer with the name only.
In what year was 'goblin mode' named Oxford Word of the Year? Answer with the four-digit year only.
In what year did Dmitri Mendeleev publish his periodic table? Answer with the four-digit year only.