The straight black lines in this image are actually parallel.

  true
  false

These two objects are actually the same size

  true
  false

The orange circles are actually the same size.

  true
  false

All of these people are actually the same height.

  true
  false

Is this the front of someone's face, or the side of it?

  front
  side
  none
  both

Are the white lines the same size?

  yes
  no

Both sides of the image are the same color and brightness

  true
  false

look carefully! is this picture moving ?

  yes
  no

what do you see ?

  2 persons
  a long vase
  both