In this test, you must find the difference, and only geniuses can spot it in such a short time.
Optical illusions occur when we are easily deceived or confused by seeing an image or scene with our own eyes.
Such images are very interesting for people; furthermore, they are very intriguing and effective.
Optical imagery enhances the efficiency of the brain and eyes in developing observational skills.
Such tests can be found on the internet.
This test is quite challenging, and you have only 20 seconds to find the difference.