If you've got the time, we've got the riddle. And it's time for a riddle about time: How many numbers are on a clock?

Why most people get this simple math riddle wrong.

Add Yahoo as a preferred source to see more of our stories on Google. No matter your age, it's always a good idea to give your mind a workout. Interactive brain teasers like riddles, trivia, and fun ...

Move over, worksheets and pencils! The team behind The Grapes of Math once again proves that posing number problems through verse and vivid pictures is a powerful path to math learning. With titles ...