Get out your timer and number two pencil to see if your arithmetic skills are still sharp.

A graphic artist is testing everyone’s knowledge of algebra and spot-the-difference skills with a pictograph math problem that assigns numbers to different fruits. Gergely Dudás, of Hungary Budapest, ...

Get out your timer and number two pencil to see if your arithmetic skills from grade school are still intact.

Every few months, the Internet eats itself over some kind of viral riddle or illusion, each more infuriating than the last. And so, like clockwork, this maddening math problem has gone viral, ...