I’ve been out of school for decades, and I don’t spend my days solving equations (I’m more of a word person). Still, I like to think I have a solid grip on basic math: I can usually gauge whether a ...

An elementary school math question has left not only students but also a seasoned teacher—and much of the internet—scratching their heads. Bobby Seagull, @bobby_seagull, shared the puzzle his friend's ...

This holiday-themed brainteaser looks simple, but it's quietly tripping up adults everywhere I’ve been out of school for decades, and I don’t spend my days solving equations (I’m more of a word person ...