In this mind-bending puzzle, there are three numbers that are visible - 21, 22, and 23. But there is a third number in this ...

The peripheral drift illusion causes us to perceive motion in a still image. A new study shows that the mechanism of this illusion relies on changes in pupil size.

Challenge your eyesight with an optical illusion, where the hidden number 96 must be found among numerous 69s within 7 ...

However, the experts did reveal one slightly more unique method to make your garden look bigger than it is. Believe it or not ...

Perhaps the most intriguing possibility is that training on optical illusions can improve radiologists’ skills at their own work. So, how can you learn to see through illusions? Simple.

Your time’s up! Spotted the pigs without hats yet? Or are you in need of some hints? For hints, all we can say is maybe try taking another good look! For this one, we can hardly give you any hint, or ...

There is plenty left to find out. Perhaps the most intriguing possibility is that training on optical illusions can improve radiologists' skills at their own work. So, how can you learn to see through ...

There is plenty left to find out. Perhaps the most intriguing possibility is that training on optical illusions can improve radiologists’ skills at their own work. So, how can you learn to see through ...

Optical illusions continue to capture public interest because they highlight the fascinating way the brain interprets images. These puzzles play with light, shadow, patterns, and depth perception ...

Have you ever wondered what people really think about you? This optical illusion personality test might have the answer! Look at the four magical bottles in the image and pick the one that draws you ...

And they've become an easy way to describe new apps or services—to say a startup is "like the Uber of ____" has become a Silicon Valley cliché. To draw a useful analogy, Sørensen and Carroll ...