"Mr. Smith had four daughters" is a viral riddle that has everyone stumped. Give it a try to test your... Here's a fun way to put your IQ through its paces. Try these sample questions from the Mensa ...

There is no reality check like telling someone the same story twice and not realizing it until they stop you midway. When that’s followed by misplacing your keys for the second time in a week or ...

Brain games give your mind a serious workout — exactly what you need to help keep it sharp. Here are our favorites. Keeping your mind sharp is important, especially as we age. Despite this, many of us ...

Did you know you have reward centers in your brain? You do! Think about when you solved a Hack Your Brain puzzle or completed one of the challenges. Perhaps you got a high-five from a friend or a ...

Get ready to be bamboozled with all-new mind-twisting puzzles, including scenarios that require you to brain out and face brain test challenges. In this new brain game, puzzles have stories with ...

All the Latest Game Footage and Images from Quiz Brain Workout A daily challenge for puzzle lovers. Carefully curated quizzes inspired by Japanese logic and culture. From IQ tests to tricky riddles, ...

Forbes contributors publish independent expert analyses and insights. Tony Bradley covers the intersection of tech and entertainment. There are 20 episodes in this season of Brain Games: On the ...