All the vertical lines are perfect and parallel to each other. (The image is Copyright A. Kitaoka)

Are chameleons black, white or orange coloured?

Are the horseman white or orange?

Are what you see angels or devils?

Body on the cover of magazine.

Can you count the bears?

City and the curtains.

Concentrate on the plus sign at the center and don't look any where else. The pink spots will disappear.

Concert time.

Do you see a duck, or a rabbit?

Does the lower corner of the square look bent?

Doesn't look very delicious.

Doesn't look very delicious.

Don't pick your nose.

Fascinating.

Fields and beds.

Five profiles.

Flying and sailing ships.

From tree to the skyscraper.

Fruit man.