How Quick Does Your Brain Work? Only A Few People Can Spot These Hidden Images

optical illusion brain

Think you've got a speedy brain? Think again! This optical illusion quiz will test your brain power to the max.

How fast does your brain work? Take the ultimate test to find out! 

This multiple choice quiz asks you how long it takes your brain to work out the optical illusions in the images...and it's pretty tough!

Read More: Can You Spot The Fish Amongst The Octopuses?