A new optical illusion is putting people’s eyesight - and patience - to the test. The challenge looks simple at first glance: a full grid of the number 349 repeated over and over. But hidden somewhere ...

The trick here is that your eyes get used to the pattern right away. Once the brain sees row after row of the same figure, it stops searching for anything unusual. That is why the odd number blends in ...

These puzzles challenge solvers to use a mix of mathematical operations, pattern recognition, and deductive reasoning to uncover hidden numbers. These puzzles require a keen eye for detail and a knack ...

Spot the hidden number of Ms: Another challenge is ahead in which you have to spot the number of hidden Ms in this optical illusion image of Ws. Take a look at the image and find Ms hidden in the ...