When you need a vigorous, sweat-inducing brain workout, attempting to solve some hard riddles is a sure way to get those intellectual reps in. Putting your smarts to the test in this way is not for ...

Who doesn’t love the satisfaction that comes with solving a good riddle? As you work through plays on words, confusing hypothetical situations and hidden-in-plain-sight solutions, you get a mental ...

There are lots of kinds of hard riddles—silly ones, weird ones, ones that make you groan when you hear the answer. But they all flex our brains and challenge us to think in a new way. But the very ...