illusion

have you heard of illusion?

when come to optical illusion, sometime it is fun to have a look on it as our eyes may perform some tricks on you. you start to see different things in different views.!!
here are some of the examples...

this is quite a famous one..
what do you see in this picture?





a face or a woman?





how many faces do you see??





how many black dots do you see??






where is the top?






are the lines parallel?





how do the water flow?





move your eyes slowly toward the dot in the middle






how are the dices stack?





and do you know..?

WHAT IS THE MOST OFTEN ILLUSION I SEE ???


this word..

as every time i see it,
i see question marks dancing around it ..




:(