Find out how much you know with these random facts and trivia questions on movies, music, history, science, geography and so much more.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Stay sharp and learn something new every day or stock up on knowledge for the next 105 days with these ...

Impress your kids with fun facts that are both age-appropriate and surprising. Did you know that ketchup was once sold as medicine in the 1800s, or that Earth has more trees than stars in our galaxy?

WATCH OUR OTHER VIDEOS: 100 Random Facts That Will Break Your Brain: 100 Amazing Facts You Didnt Know: If you told someone in 2012 that Gangnam Style was going viral and the FBI was still using paper ...