What is the person in the image doing? If we see it randomly we can only say that he is  only crossing the wall but on seeing it carefully we see this is just an illusion and it is just a line painted on the floor and the man is doing a false act so as to portray this illusion

In this image, water is falling on the head of a person as if it is a cap.This may not be classified as an optical illusion but still it is a really funny image

The Shadow of a girl is totally merged with the clothes lying on the ground giving it a look of an optical illusion

See the illusion below and try to figure out what you see in it.Some people will see an instrument but on closer look up you can see a face of a woman in it

Count the number of wolves you can see in this picture..Definitely the number of wolves is more that 1