Start with a deck of cards. Before the trick, sneak a peek at the 10th card in the deck. Memorize it. Now choose a volunteer. Ask him to choose a number between 10 and 20. Count out that number of ...

Just when you begin to question the merit of all those years you spent studying math in school, something pops onto the scene to give you a newfound respect for the subject — a math trick that reveals ...

Imagine you're a trader. You're on the trading floor, trying to price out if a 15-year bond issued by General Electric will generate the returns needed to placate your investors. Bad news, your ...

YouTuber Kevin Lieber (who hosts the popular Vsauce2 series) has brought a classic math magic trick back from its ‘90s heyday. In the video, Lieber walks viewers through a magic trick where they ...

Everyone gets really wow'd when someone pulls off some exceptional mental math. The best part is, you can totally be that guy at the party with a little practice and preparation. What follows is 10 ...