A brain teaser featuring a simple yet tricky math puzzle surfaced on Facebook, challenging users to find the missing number ...

A new study reveals that you're more likely to remember solutions from aha moments than ones you reach intentionally.

Explore daily insights on the USA TODAY crossword puzzle by . Uncover expert takes and answers in our crossword blog.

Struggling to finish that Chess Puzzle to get the Taken Shader and the Ship? Here's every solution, including the answer to ...