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?

Just like muscles grow stronger with exercise, the brain thrives on activity, staying sharp through consistent stimulation.

You can probably think of a time when you’ve used math to solve an everyday problem, such as calculating a tip at a restaurant or determining the square footage of a room. But what role does math play ...