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

Sometimes, the simplest tasks can turn out to be the most complicated. While that’s a frustrating fact of life in general, it does make for some fun brainteasers! Take this “how many squares” puzzle, ...

Sure, riddles are fun if you’re a fan of clever wordplay. But there’s something so uniquely enjoyable about a good visual puzzle. So today, we’re calling all brainteaser aficionados: How many ...

The optional hint tells you how many segments can be broken. Your task is to then find which ones. Did Time Tick Slower for a Woman Who Spent 500 Days Alone in a Cave?

Duah: Using puzzles, both at home and in classrooms, can restore the often-forgotten truth that learning happens in ...

If you enjoy brain teasers and visual puzzles, this riddle will surely give your brain muscles a workout and test you sharp sight. Visual puzzles improve your observation skills, test your attention ...

A difficult puzzle where readers must count the number of sheep is pulling the wool over people's eyes. The sleep deprived have used counting sheep as a way of helping them to nod off for decades. And ...