Announcement: The Gizmodo Monday Puzzle is going on a summer hiatus. Look out for us again in the fall! Follow me on Twitter to stay up to date about the series and for more puzzles, math, and other ...

Most of us are curious beings by nature. So, if you’ve been staying awake at night wondering what your credit card number means, it’s your lucky day. I’m going to pull back the curtain and show you ...

There are 36 cards labeled with the numbers 1 through 36 and then placed face down on a table. If four cards are revealed one after the other, what is the probability that each card’s number is larger ...

All the Latest Game Footage and Images from Numbers Planet: Games and Puzzles This is a collection of more than 25 simple and amusing games about numbers and math. It includes the following games: ...