Оptical illusion 45

How many colors can you see in the following picture?

It's only 3 colors - white, green and pink. You may find that there are 2 shade of pink, but actually it is not.
What do you think of these waves?

Brown wave stripes painted? But, no! It's only an illusion.

If you stare long enough at the black color of this lamp, and then look at a white sheet of paper, then this lamp will be visible there

Look at the point, and then a little further away and move closer to the monitor. The circles will spin at the same time in different directions.

Interesting pictures illusion have a nice view.
Thanks for the comments, likes))
Source: http://ona-znaet.ru/publ/56-1-0-339