Or you can always go with a childhood classic to test your skills: the memory card game. Crossword puzzles can be difficult, but challenging yourself is key to keeping your brain sharp.

Test your brain power with this addictive new game from the New York Times—and find out the best strategies for... It might not seem like there's enough information to solve these logic puzzles ...

The card game of bridge is considered a cerebral sport ... found evidence that an area in the brain used in playing bridge stimulates the immune system. Research shows that physical activity ...

And as Google gets better at reading and predicting human behavior, it will be able to apply its progress in AI to other areas. According to Brown University computer scientist Michael L.