Some people scroll past puzzles. Others stop, squint, and dive in. If you're the second type, then you might just be a math legend. There's a new viral math brain teaser that’s testing how fast people ...

A brain teaser is a short, playful puzzle designed to make your mind stretch and smile. It could be a riddle, a tricky question, a visual illusion, or a logic twist that nudges you to think beyond the ...