Brainteasers aren't puzzles to play with; they're a mental exercise that tests your thinking, honing your concentration and ...

Do you have the problem-solving skills of a mathematical genius? This brain teaser will test your ability to think fast and ...

A 14-year-old "human calculator" from India put his mental math to the test and broke six Guinness World Records in a single ...

and the ICE-powered Q5 will retain its odd number, according to the same report. This isn’t the first time Audi has ruined a long-standing naming system and then been forced to make a U-turn.

Numbers have always intrigued me for some odd reason. And even though I could never in a million years interpret Einstein’s theory of relativity and in fact barely squeezed by ...

The modern calendar has Roman Catholic roots. As the sun does not adhere exactly to the earthly calendar, leap days are ...

The Romans added January and February to the calendar but ran into a problem — math and superstition. Here's why February became the odd month out.