Some 2.3 million of U.S. adults older than 65 — more than 4% — have a diagnosis of dementia. But even without a diagnosis, a certain amount of cognitive decline is normal as age sets in.

He was credited with inventing the jigsaw puzzle in 1767, and they would mostly be used as teaching aids until the early to ...

Brain teasers are challenges that test your thinking and problem-solving abilities. They often require you to think ...

If you love puzzles, then these 15 riddles and brain teasers will really get your brain working! They range from tricky math ...

If you’re looking to give your brain a workout, these 15 IQ-boosting riddles are perfect for sharpening your mind. They range ...