Think you have sharp eyes? Find the inverted 58 among inverted 85s in five seconds in this viral optical illusion test.

Test your observation skills with a tricky optical illusion featuring upside-down Z shapes hiding the number 2. ... This puzzle is tricky because the number 2 and the inverted Zs look very similar.

A THOUGHT-provoking optical illusion has left many questioning their own brains. Most optical illusions confuse the human brain via the use of color and lines – and one simple image prove… ...

Optical illusions are not simply entertaining diversions—they're a ... Only a genius can spot the number 24 in a sea of inverted 24s within 5 seconds. TOI Lifestyle Desk / etimes.in ...

THE ‘fat face thin illusion’ shows that flipping a picture upside down can make any subject’s face appear longer and thinner. The trick is possible because the brain’s perce… ...

THE illusion of the inverted pin was shown me about the year 1846–47, and I well remember, when I was at Cambridge, working out the explanation inductively. In the autumn of 1847 I was spending ...

A THOUGHT-provoking optical illusion has left many questioning their own brains. Most optical illusions confuse the human brain via the use of color and lines – and one simple image prove… ...