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 ...

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

If you love solving puzzles and tricky riddles, this brain teaser is perfect for you! Brain teasers add a creative twist to simple riddles, making them more engaging and thought-provoking. These ...

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.