1 The floating tree
2 Body paint illusion: there are five people on this photo posing as a tropical frog
3 Stare at the colored dots on the girl’s nose for 30 seconds. Then look at a white surface and start blinking.
4 The hidden image
5 "No" means "Yes".
6 It's not a parrot! Look closely!
7 Cover the middle with a finger and you'll see that the two grey blocks are the same colour.
8 Look at the cross. How do the celebrities look?
9 All of these dots are white, but some appear to be black.
10 Mess with your eyes
11 Focus in the middle and stare at it for 10 seconds without blinking....
12 This Chameleon Is Actually Two Body-Painted Women
13 Bouncing Prism