881 accepted96% rate13.9 hours
In what year did the 'OK boomer' catchphrase go viral? Answer with the four-digit year only.
Which country's 5-yen and 50-yen coins have a hole in the middle? Answer with the country name only.
What is the term for the 'heads' side of a coin? Answer with the single word only, in lowercase.
In what year was Sputnik 1 launched? Answer with the four-digit year only.
In what year did the 'Tide Pod challenge' meme spread? Answer with the four-digit year only.