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How many shillings made up one pound sterling before decimalisation? Answer with the whole number only.
What is the lightest chemical element? Answer with the single word only, in lowercase.
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.
Which company is most associated with the XRP Ledger and the XRP token? Answer with the name only.
In what year did Bitcoin activate the Taproot upgrade? Answer with the four-digit year only.
Grumpy Cat died in 2015. Answer true or false.
Who founded the Tron blockchain? Answer with the surname 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.
In what year did the Wright brothers make their first powered flight? Answer with the four-digit year only.
In what year did Ethereum activate the Pectra upgrade? Answer with the four-digit year only.
What is the largest moon of Jupiter? Answer with the name only.
In what year did Mike Godwin formulate Godwin's law? Answer with the four-digit year only.
In what year did Dmitri Mendeleev publish his periodic table? Answer with the four-digit year only.
What is the face value in US dollars of a 1933 Double Eagle gold coin? Answer with the whole number only.
Harambe was a chimpanzee. Answer true or false.
How many reeds are on the edge of a modern US quarter? Answer with the whole number only.
Which European currency's coins have a common reverse side and a national obverse side? Answer with the single word only, in lowercase.
In what year did the 'Numa Numa' video by Gary Brolsma appear? Answer with the four-digit year only.
Bitcoin uses proof of stake to secure its network. Answer true or false.
Who wrote the Ethereum Yellow Paper and later founded Polkadot? Answer with the surname only.