If you can't find all the differences so quickly, don't give up. Cognitive development experts say that you can only really benefit from spot-the-difference puzzles if you find the solution yourself.

Seek and Find Puzzles are tricky images that use colours, lights and different patterns to trick human minds. These images can trick human brains easily because of a variety of factors ...

This puzzle requires maximum concentration and attention to detail. To successfully overcome the challenge, it is necessary to pay attention to every element of the image, not missing the smallest ...

Spot the Difference: Are you ready for a visual challenge to test your focus and quick-thinking skills? In this fun spot-the-difference game, you’ll have just 13 seconds to find 3 hidden ...

The Mini is a quick and easy way to test your crossword skills daily in a lot less time (the average puzzle takes most players just over a minute to solve). While The Mini is smaller and simpler than ...

Love crossword puzzles but don’t have all day to sit ... Tripping up on one clue can be the difference between a personal best completion time and an embarrassing solve attempt.

Brainteasers are a great way of keeping your mind sharp. This Halloween brainteaser from Thortful asks you to find the orange ...

We’d love to hear from you! E-mail us at games@sciam.com to share your experience. This puzzle originally appeared in Spektrum der Wissenschaft and was reproduced with permission. Hans-Karl Eder ...

The online coupon must be completed in one session and submitted when you have answered all the puzzles you wish to enter. – The magazine cover, barcode or a receipt is required as proof of ...

These puzzles, created by Russian scientist Michail Bongard, present twelve simple images that are divided into two groups. The challenge is to identify the rule that separates these groups, a task ...