That's a Fact Jack: A Collection of Utterly Useless Information [Updated] by Harry Bright and Jakob Anser is a book that is sooo amazing! I seriously wonder where these guys dug up all this info!
"Cleave is a contronym--a word that is its own antonym. It can mean to 'cling or adhere' or 'to split or sever something'. The correct meaning of the word can only be derived from context."
So did not know this.
"A fetus acquires fingerprints by the end of its first trimester."
Whoa. That's early!
"Tampons were originally designed to plug in bullet wounds. The word 'tampon' comes from the French tampion, a piece of cloth used as a stopper."
Oh the things you learn!