"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Researchers at Duke University monitored participants’ brain activity while they completed simple math ...

Challenge yourself with two fun brain teasers that will test your logic and thinking skills. Can you solve them both?

Riddles are fun brain teasers that challenge your logic and ability to think outside the box. If you can solve all 16 of these without peeking at the answers, you might be smarter than the average ...

Looking for a quick mental challenge? Try these two fun brain teasers and see how fast you can solve them. #BrainTeaser ...