In what year did Will Smith slap Chris Rock at the Oscars? Answer with the four-digit year only.
What is the SI base unit of electric current? Answer with the single word only, in lowercase.
In what year did the 'OK boomer' catchphrase go viral? Answer with the four-digit year only.
What is the term for the 'heads' side of a coin? Answer with the single word only, in lowercase.
In what year did the 'Tide Pod challenge' meme spread? Answer with the four-digit year only.
How many valence electrons does a carbon atom have? Answer with the whole number only.
What is the smallest unit of Cardano's ADA called? Answer with the single word only, in lowercase.
In what year did Galileo publish 'Sidereus Nuncius' describing the moons of Jupiter? Answer with the four-digit year 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.
In what year did the third Bitcoin halving occur? Answer with the four-digit year only.
Which 'Ancient Aliens' presenter became the 'Aliens' meme guy? Answer with the surname only.
In what year was the Kennedy half dollar first issued? Answer with the four-digit year only.
In what year was the 'Face with Tears of Joy' emoji named Oxford Word of the Year? Answer with the four-digit year only.
Which US senator inspired the 2021 'mittens' meme at the inauguration? Answer with the surname only.
The mint mark 'P' stands for Denver. Answer true or false.
What percentage silver are US dimes and quarters minted before 1965? Answer with the whole number only.
