CTEMPNSM

Cubic shaped circle.

Curved squares. (The image is Copyright A. Kitaoka)

Deep spiral (The image is Copyright A. Kitaoka)

Diagonal lines are parallel to each other.

Dice faces look distorted. (The image is Copyright Archimedes-Lab)

Did you know big rectangles are the same colour?

Did you know that squares A and B are the same colour?

Did you notice inverted woman's face?

Did you notice the faces among the flowers?

Did you notice the shape formed in the center? (The image is Copyright A. Kitaoka)

Did you notice the top side of the cube?

Difficult combination.

Disappearing horse.

Distorted rectangular silhouettes. (The image is Copyright A. Kitaoka)

Do the horizontal lines look curved?

Do the horizontal lines look curved?

Do the squares appear distorted?

Do the white areas belong to bottom or top.

Do you look through the cylinder from the right or from the left?