1,225 accepted99% rate11.5 hours
1,225 accepted99% rate11.5 hours
In what year was the American Silver Eagle bullion coin first issued? Answer with the four-digit year only.
How many valence electrons does a carbon atom have? Answer with the whole number only.
How many sides does the British 50p coin have? Answer with the whole number only.
The British 50p coin is a perfect circle. Answer true or false.
What is the ticker symbol of Chainlink's token? Answer with the ticker symbol only, in uppercase.
Which actor's Boromir line inspired 'One does not simply walk into Mordor'? Answer with the surname only.
In what year did Bitcoin activate Segregated Witness (SegWit)? Answer with the four-digit year only.
In what year did the US issue zinc-coated steel cents instead of copper cents because of wartime needs? Answer with the four-digit year only.
How many slots are in an Ethereum proof-of-stake epoch? Answer with the whole number only.
How many euro coin denominations are there? 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.
What is the SI base unit of temperature? Answer with the single word only, in lowercase.
In what year was the Kennedy half dollar first issued? 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 Ethereum Merge happened in 2020. Answer true or false.
What is the atomic number of platinum? Answer with the whole number only.
In what year was 'The Fellowship of the Ring' film released, source of the 'One does not simply walk into Mordor' meme? Answer with the four-digit year only.
How many emoji were in Shigetaka Kurita's original 1999 set? Answer with the whole number only.
In what year did the US president sign an executive order creating a Strategic Bitcoin Reserve? Answer with the four-digit year only.
Which US senator inspired the 2021 'mittens' meme at the inauguration? Answer with the surname only.
Which former US mint city used the mint mark 'CC'? Answer with the city name 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.
Who created Litecoin? Answer with the surname only.