How many slots are in an Ethereum proof-of-stake epoch? Answer with the whole number only.
In what year was the Lincoln cent first issued in the United States? Answer with the four-digit year only.
In what year was Canada's two-dollar 'toonie' coin introduced? Answer with the four-digit year only.
In what year was the Saint-Gaudens double eagle gold coin first struck? Answer with the four-digit year only.
Whose portrait appears on the obverse of the US one-cent coin? Answer with the surname only.
In what year did Ross Ulbricht receive a presidential pardon? Answer with the four-digit year only.
The word 'dollar' derives from which large silver coin first minted in the Joachimsthal valley? Answer with the single word only, in lowercase.
Rounded down to a whole number, how many grams are in one troy ounce? Answer with the whole number only.
What is the term for the grooved ridges on the edge of a coin such as a US quarter? Answer with the single word only, in lowercase.
In what year did El Salvador make bitcoin legal tender? Answer with the four-digit year only.
'Gangnam Style' was the first YouTube video to reach one billion views. Answer true or false.
What is the capital of Nigeria? Answer with the city name only.
What is the largest organ of the human body? Answer with the single word only, in lowercase.