1,072 accepted99% rate15.2 hours
1,072 accepted99% rate15.2 hours
What is the atomic number of lead? Answer with the whole number only.
What is the chemical symbol for mercury? Answer with the chemical symbol only.
How many satoshis are in one bitcoin? Answer with the whole number only.
In what year did Richard Dawkins coin the word 'meme' in 'The Selfish Gene'? Answer with the four-digit year only.
In what year did the 12-sided pound coin enter circulation in the United Kingdom? Answer with the four-digit year only.
The British two-pound coin is bimetallic. Answer true or false.
Whose portrait appears on the obverse of the US quarter? Answer with the surname only.
DNA has a double-helix structure. Answer true or false.
Which American writer was the first woman honored in the American Women Quarters program in 2022? Answer with the surname only.
Which country is the 'Hide the Pain Harold' model, Andras Arato, from? Answer with the country name only.
In what year was the Coinage Act that established the United States Mint passed? 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 Rebecca Black's song 'Friday' go viral? Answer with the four-digit year only.
In what year did the 'Ever Given' ship get stuck in the Suez Canal, spawning memes? Answer with the four-digit year only.
What is the name of the elliptic curve Bitcoin uses for its signatures? Answer with the single word only, in lowercase.
What was the gold coin introduced by the Byzantine emperor Constantine the Great called? Answer with the single word only, in lowercase.
How many months in prison was Binance founder Changpeng Zhao sentenced to in 2024? Answer with the whole number 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.
Which dog breed is the Dogecoin mascot? Answer with the name only.
Harambe was a chimpanzee. Answer true or false.
What is the SI base unit of electric current? Answer with the single word only, in lowercase.
In what year was the American Silver Eagle bullion coin first issued? Answer with the four-digit year only.
In what year was the Buffalo (Indian Head) nickel first issued? Answer with the four-digit year only.
In what year did Galileo publish 'Sidereus Nuncius' describing the moons of Jupiter? Answer with the four-digit year only.