A version of this puzzle originally appeared in the October 1960 issue of Scientific American. What’s the Most Distant Galaxy ...

You’ve no doubt seen some version of this viral math problem making the rounds on Facebook, Reddit or X (though we’ve given ...

Playing games like Wordle is a great way to satisfy your daily puzzle cravings, so if you're looking for more daily word puzzles to tease your brain and share with friends, you've come to the right ...

Some of the most satisfying number puzzles require little mathematical know-how. In fact, cracking the one below calls for thinking that is quite nonmathematical. I don’t know where or when I first ...

You are participating in a holiday gift exchange with a few classmates. You each write down your own name on a slip of paper and fold it up. Then all the students place their names into a single hat.