9. Witch way am I looking?

16. If you take a look at the following picture , let me tell you
If you take a look at the following  picture , let me tell you ... it is not animated.  Your eyes are making it move.  To test this, stare at one spot for a couple seconds and everything will stop moving.  Or look at the black center of each circle and it will stop moving.  But move your eyes to the next black center and the previous will move after you take your eyes away from it....  Weird 

18. Are the purple lines straight or bent?

20. Which circle in the middle is bigger?

21. Do you see gray areas in between the squares
Do you see gray areas in between the squares? Now where did they come from?

22. You should see a man's face and also a word
You should see a man's face and also a word... Hint: Try tilting your head to the right, the world begins with 'L'

23. Is this possible!?!

24. Is it just me or is it you?

25. Where is the bird?

26. Don’t you just love optical illusions.

27. Reflect on this!

28. Count every " F" in the following text:
FINISHED FILES ARE THE RE SULT OF YEARS OF SCIENTI FIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS...

29. HOW MANY ? WRONG, THERE ARE 6 -- no joke. READ IT AGAIN !
FINISHED FILES ARE THE RE SULT OF YEARS OF SCIENTI FIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS...
Why?
The brain does not process "OF".

30. Is it Pink? Green? Or even there?
Very cool illusion
Is it Pink? Green? Or even there?

31. Lots and lots of optical illusions
More optical illusion
Lots and lots of optical illusions