An optical illusion has left people stunned as it tricks their brains into seeing something else in the black and white image ...

These incredible optical illusions will have you rubbing your eyes and second-guessing yourself! Click through this gallery ...

An alligator is hiding expertly in this optical illusion picture. Can you find it in 5 seconds? Test your intelligence and ...

People have been left scratching their heads after seeing a black and white image of a horse transform into colour in front ...

A visual puzzle challenges you to find the word \"King\" hidden among numerous \"Ring\" repetitions within a tight 6-second timeframe. This brain teaser t ...

An optical illusion has left people stunned as it tricks their brains into seeing a black and white image in full colour - ...

A new optical illusion is circulating online. It features a cat hidden within a group of owls. This puzzle tests observation ...

Dive into this brain-teasing optical illusion where numbers play tricks on your eyes. Can you spot the odd one out in the sea ...

A viral optical illusion challenges viewers to find a tiny hidden detail among rows of identical patterns, testing visual focus and patience while revealing how easily the brain overlooks subtle ...

Test your binocular vision and depth perception with this 3D floral stereogram optical illusion. Spot the hidden object within seconds in this challenging visual brain teaser.

Now You Don't features some impressive illusions, and the director told us how he pulled it off using practical effects.

For all its craftsmanship, the film lacks a singular, inarguable showstopper — the kind of sustained and self-contained trick ...