The popularity of optical illusions is on a meteoric rise on the internet. As a result, these brain teasers are getting harder on a daily basis. If you prefer challenges, we have an appropriate ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and took the form of cave sculptings. Nowadays they are found all over the place – on screens, in books ...

Optical illusions challenge: Think you’ve got sharp eyes and a quick brain? Try this optical illusion IQ test that’s leaving even the brightest minds puzzled. This brain teaser challenges you to find ...