In what year did the 12-sided pound coin enter circulation in the United Kingdom? Answer with the four-digit year only.
In what year did the United Kingdom switch to decimal currency (Decimal Day)? Answer with the four-digit year only.
Which country issues the Maple Leaf bullion coins? Answer with the country name only.
Whose portrait appears on the obverse of the US quarter? Answer with the surname only.
The animal in the 'Dramatic Chipmunk' video is actually a prairie dog. 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.
Water expands when it freezes. Answer true or false.
What is the lightest chemical element? Answer with the single word only, in lowercase.
Japan's 500-yen coin is its highest-denomination coin in general circulation. Answer true or false.
In what year was the Washington quarter first issued? Answer with the four-digit year only.
In what year was the Coinage Act that established the United States Mint passed? Answer with the four-digit year only.
Which organelle is known as the powerhouse of the cell? Answer with the single word only, in lowercase.
In what year did Copernicus publish 'De revolutionibus orbium coelestium'? Answer with the four-digit year only.
What is the maximum supply of Litecoin, in whole coins? Answer with the whole number only.
Which company is most associated with the XRP Ledger and the XRP token? Answer with the name only.
Which planet was discovered in 1846 by mathematical prediction? Answer with the name only.
Mitochondria have their own DNA. Answer true or false.
In what year was the Roosevelt dime first issued? Answer with the four-digit year only.
Traditional Chinese cash coins have a hole of what shape in the middle? Answer with the single word only, in lowercase.
In what year was the Hubble Space Telescope launched? Answer with the four-digit year only.
