This riddle challenge will test your intelligence and critical thinking skills. Only a sharp mind can crack the riddle in 5 ...

Riddles certainly put your brain to work, especially as you age, so don't waste any time trying to solve the "I have cities, ...

Social media isn’t just for catching up on your friends’ lives, liking every single photo of your cousin’s new puppy or casually seeing what your ex is up to. It’s also a place where tricky brain ...

The alphabet song won't help you in the case of this viral riddle Social media’s newest brain game has a ton of people stumped. So stumped, in fact, that the riddle has gone viral. People are ...

Get ready to solve these Christmas riddles before the detective does in this fun and festive brain teaser challenge. This ...

Math problems aren’t always easy to figure out. They require practice and experience to master, especially if you don’t have much time to spend learning. These seemingly simple numbers and equations ...

Brain teasers and riddles are a question, statement or phrase, designed to play tricks on and confuse the brain. These riddles have double or hidden meaning and are put forth to the reader as ...

This past summer, the pharmaceutical giant launched InnoCentive.com, a Web site where scientists from Big Pharma and start-up biotechs post problems for outside researchers to solve. Companies signed ...