Amazing optical illusions that is going to keep you thinking.. Click on the image to view full image:
 Young lady or old woman? |  Young girl or old woman? |  Which way to get up? |
 Which red circle is larger? |  Which line connects to C? |  Who is taller? |
 Which middle line is longer? |  Which black rectangle is larger? |  Weird cube design |
 Vase or two people? |  The green is the same color |  Focus on center while moving your head |
 The top lines are the same size |  The green color is the same throughout |  Stare at the dot, the grey haze will disappear |
 Square has curved inside? |  Slow gears moving |  Skull or Ladies? |
 Seal or Donkey? |  Sax player or woman? |  Same size squares |
 Rabbit or Duck? |  Really a spiral? |  Rabbit or Duck? |
 Physically possible? |  Parallel Blocks |  Moving Straight! |
 How can you keep climbing? |  Hidden answer |  Have a seat |
 Figure this out! |  Father or Son? |  Eskimo or Indian? |
 E or black lines? |  Cube missing or a small one rotating on large one? |  Circle turns to green |
 Can you stack these blocks? |  Parallel black lines |  Bird with woman or Fish with canoe? |
 Appears to be bulge but consists of only sqares |  Mechanically Adept |  4 or 3 Feet? |
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