Optical Delusions 
  
    
 Good & Evil
 
 
Optical & Illusion
 
 
 Teach & Learn
 
 
Me & You
 
 
Face and the word 'Liar'
 
 
 No, it's not an animation — honest!
 
 
What crooked lines?
 
 
What black dots?
 
 
  
(stare at the +)
 
What green dot?
 
1.  Stare intently at the four small black dots in the center of the pic for a good 30 seconds. 
  
2.  Look at a blank wall, blink eyes a few times.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
12 or 13?
 
 
 
 
 
 
 
 
  
 Squares A and B are the exact same color.
 
Don't believe me?  Watch this.
 
Here's a cut-out of the pic:
 
 
Here we are adding another 'B' square:
 
 
And another...
 
Amazing!
 
 
And another addition:
 
The middle squares are the same color.
 
 
And then there's...