Add Yahoo as a preferred source to see more of our stories on Google. Whether you're wrestling with the physics of the universe or wondering why we park on driveways but drive on parkways, these brain ...

Add Yahoo as a preferred source to see more of our stories on Google. Getty Images If you had a reputation for being a know-it-all as a kid, you’re likely now the person with a trusted list of trivia ...

Have you ever found yourself lying awake at night, pondering questions that seem to have no clear answers? From ancient philosophical puzzles to modern scientific mysteries, some questions have a ...

Shelbie Witte does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...