An amusing parlor trick is performed as follows. Ask spectator A to jot down any three-digit number and then to repeat the digits in the same order to make a six-digit number (e.g., 394,394). With ...

You probably haven’t had to do longhand math in years, but you do mental math every day. Or maybe you google math problems ten times a day, because you’ve forgotten how to do any math beyond your ...

Test your brain with this tricky math question! Most people get it wrong at first glance. Divide 100 by half, add fifty, and see if you can solve it correctly. Are you up for the challenge?