Think you have sharp eyes and quick focus? Find the missing pacifier hidden among colourful baby toys in just 9 seconds.

Look closely at the repeated 917 numbers and identify the two odd ones before 19 seconds run out. This optical illusion is designed to test focus, pattern recognition, and mental agility.

Hidden number and letter optical illusions are some of the most satisfying puzzles because they look unbelievably simple until you actually try them. In this challenge, you are shown a neat grid ...

Optical illusion puzzles are known to be fun and fascinating brain challenges that are designed in such a manner that they play tricks on your eyes as well as minds. These puzzles can make you see ...

Optical illusions occur naturally in different habitats and conditions across the world. Cloud formations can sometimes make it seem like there's an ocean or a UFO in the sky. Whether it is salt flats ...

Scroll down to see loads of other tricky brain teasers DRIVERS are testing their visual acuity with a new brain teaser game. An optical illusion shows a group of EV batteries having one hidden, empty ...

It's not just humans who notice optical illusions; certain animals do too, and they often use it to their advantage. When you purchase through links on our site, we may earn an affiliate commission.

Everyone loves an optical illusion — even if they leave us completely stumped — and they're all around us in the natural world. From an underwater waterfall in the Indian Ocean to a surrealist scene ...