Students in Melissa Williams' kindergarten class at the Westminster School in Atlanta, Georgia, practice connecting quantities to written numbers — a key part of number sense. Credit: Holly Korbey for ...

A brain teaser is a type of puzzle or riddle designed to challenge your thinking and problem-solving skills. It often requires creative, logical, or lateral thinking rather than academic knowledge.

A brain teaser is like a fun little challenge for your mind. It’s a puzzle or riddle designed to make you think creatively and critically, often in ways you’re not accustomed to. At first glance, a ...