What comes once in a minute, twice in a moment, but never in a thousand years? The letter "M." Visit Insider's homepage for more stories. Sometimes puzzles are so obvious that they're nearly ...

This collection features over 75 simple, funny, and educational riddles for kids. The riddles help improve thinking, logic, and problem-solving skills while keeping children entertained. Perfect for ...

If you love solving puzzles and tricky riddles, this brain teaser is perfect for you! Brain teasers add a creative twist to ...

Answer: A quarter and a nickel. The statement said only one of the coins wasn’t a nickel. Try to solve these math riddles to really give your brain a workout.

Visit Insider's homepage for more stories. Sometimes puzzles are so obvious that they're nearly impossible to solve.