A stop sign so big even California drivers can see it. The post Math Puzzle for April 11, 2025 appeared first on Alameda Post ...

Editor’s Note (4/7/25): The puzzle solution was edited after posting to provide a process with even fewer planes, as ...

A math question apparently meant for 7-year-olds has left adults befuddled. The bonus math question -- which was first said to have originated on a first-grade ... a circular puzzle with five ...