Brain teasers and optical illusion puzzles can help you prepare ... shoe within a sharp timeline of 12 seconds from the black-and-white frame to prove that you have strong and sharp eyesight.

And this new optical illusion is no exception. At first glance, the image looks straightforward enough: horizontal lines running across the screen, with black and white blocks interspersed between ...

Op Art, also known as optical art, is a type of art that features optical illusions. The way that lines ... Often these are produced in black and white or highly contrasting colours.

This black-and-white illustration cleverly hides baby ... The article argues that solving such complex optical illusions can enhance cognitive skills and promote mental agility.