It's not as hard as it looks! We asked a mathematician to walk us through the steps so you can solve this problem—or any ...

These types of brain teasers test your logical and analytical thinking capabilities. This viral brain teaser presents readers with a simple math puzzle that has a missing value at the end.

Puza says that a simple math formula can reveal your “ideal bedtime” so you wake up feeling your best — and it’s not just about hitting the sack earlier. Charles Puza, a New York City ...