How many words are in the BIP-39 English mnemonic wordlist? Answer with the whole number only.
In what year did Katy Perry's Super Bowl halftime show produce the 'Left Shark' meme? Answer with the four-digit year only.
In what year did the 'Hawk Tuah' street interview go viral? Answer with the four-digit year only.
Helium is a noble gas. Answer true or false.
In what year was Rick Astley's 'Never Gonna Give You Up' released? Answer with the four-digit year only.
In what year did Edwin Hubble publish evidence that the universe is expanding? Answer with the four-digit year only.
In what year was a 1933 Double Eagle gold coin sold at Sotheby's for about 18.9 million US dollars? Answer with the four-digit year only.
Who founded Cardano? Answer with the surname only.
What was Grumpy Cat's real name? Answer with the name only.
Who proposed the planetary model of the hydrogen atom in 1913? Answer with the surname only.
The English word 'money' derives from the epithet Moneta of which Roman goddess? Answer with the name only.
Which YouTube co-founder uploaded the first YouTube video, 'Me at the zoo'? Answer with the surname only.
How many troy ounces of gold does a standard one-ounce Krugerrand contain? Answer with the whole number only.
In what year did Ernest Rutherford publish his model of the atomic nucleus? Answer with the four-digit year only.
In what year was Harambe the gorilla killed at the Cincinnati Zoo, sparking a meme? Answer with the four-digit year only.
In what year was the Susan B. Anthony dollar coin first issued? Answer with the four-digit year only.
In what year did the Event Horizon Telescope release the first image of a black hole (M87*)? Answer with the four-digit year only.
