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 ...

The optional hint tells you how many segments can be broken. Your task is to then find which ones. Did Time Tick Slower for a Woman Who Spent 500 Days Alone in a Cave?

The rules of Sudoku dictate that every row, column and 3×3 bolded box in the completed grid must contain the digits 1 through 9 exactly once. A surprising fact emerges from these simple rules. In ...

Puzzles are a hands-on way to explore simpler and complex mathematical relationships, for everyone from kids to calculus students.

Calcea Johnson and Ne'Kiya Jackson, who surprised the math world when they produced innovative solutions to a 2,000-year-old puzzle, wowed the math world again when they presented several new ways of ...