One face?
Or two profiles facing each other?



A Native American profile?
Or an Eskimo entering a cave?



A rabbit, looking right?
Or a duck, looking left?



man playing a horn or a woman's face?



How many legs does the elephant have?



stare at the black dot, the grey haze appears to shrink

Relax your eyes for the following two pictures:








The impossible box!



looking up or down?



are the horizontal lines crooked or parallel?

relax ur eyes... you'll feel like the circles are moving. but when u focus, u can tell they're not.



again relax ur eyes. the out-of-focus part of the pictre appears to move lazily.



stare at the pink centre circle and see the surroundings change

Encircle!



Despair. ehe



man overboard



downtown



ambigUous



Upside down!



Tennis!



Tea time!



splitting headache. ehe



bending the rules

is the shaded side of the box in front or behind?



it looks like there's a square but it's only the way the circles are cut



Stare at one of the dots.. doesn't it look like the other dots are blinking?



is the ball inside the box or outside?



It appears like the centre square on the left is smaller than the one on the right but they're actually both the same.