In what year did the US president sign an executive order creating a Strategic Bitcoin Reserve? Answer with the four-digit year only.
Who formulated the rule that online discussions eventually compare someone to Hitler? Answer with the surname only.
Who posted as 'Roaring Kitty' during the 2021 GameStop squeeze? Answer with the surname 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.
What is the weight in grams of a modern US five-cent coin (nickel)? Answer with the whole number only.
What percentage of a modern US five-cent coin (nickel) is copper? Answer with the whole number only.
In what year did the Space Shuttle Challenger disaster occur? Answer with the four-digit year only.