896 accepted99% rate15.8 hours
896 accepted99% rate15.8 hours
In what year did the 'Grimace Shake' trend go viral? Answer with the four-digit year only.
Who received the first bitcoin transaction from Satoshi in 2009? Answer with the surname only.
In what year did the Doge meme dog Kabosu die? Answer with the four-digit year only.
What is the atomic number of aluminium? Answer with the whole number only.
Who proposed the theory of evolution by natural selection in 'On the Origin of Species'? Answer with the surname only.
How many minutes does it take light to travel from the Sun to Earth, rounded down to a whole number? Answer with the whole number only.
Sound can travel through a vacuum. Answer true or false.
The British two-pound coin is bimetallic. Answer true or false.
The loonie is Canada's two-dollar coin. Answer true or false.
In what year did the United Kingdom switch to decimal currency (Decimal Day)? Answer with the four-digit year only.
In what year did the Ethereum mainnet launch? Answer with the four-digit year only.
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.
Which country was the first to make bitcoin legal tender? Answer with the country name only.
Whose portrait appears on the obverse of the US quarter? Answer with the surname only.
In what year was the Vine app shut down? Answer with the four-digit year only.
In what year did the Solana mainnet beta launch? Answer with the four-digit year only.
Which American writer was the first woman honored in the American Women Quarters program in 2022? Answer with the surname only.
Water expands when it freezes. Answer true or false.
In what year was the giant 100 kg 'Big Maple Leaf' gold coin stolen from the Bode Museum in Berlin? Answer with the four-digit year only.
Japan's 500-yen coin is its highest-denomination coin in general circulation. Answer true or false.
Which country is the 'Hide the Pain Harold' model, Andras Arato, from? Answer with the country name only.
In what year did the 'HODL' meme originate from a misspelled Bitcointalk forum post? Answer with the four-digit year only.
Which US city's mint uses the mint mark 'D'? Answer with the city name only.
The word 'meme' was coined in a book about evolution. Answer true or false.