Is there an extension to the cube or a missing part?

Is this a balkony, or a terrace? (?????)

Is this a balloon? (The image is Copyright A. Kitaoka)

Is this a cheese of which a small piece is eaten or is it only a small piece of cheese?

Is this a coach, or a cabin cottage?

Is this a lake or a polar bear?

Is this a true circle?

Is this a vase, or two faces?

Is this A-B-C or 12-13-14?

Is this the word "liar" or a face? Notice the word liar.

Is Tower of Pisa leaning?

Island of dogs.

It can't be difficult to draw a face.

It is a perfect frame.

It is a pleasure to look at.

It is just a painting.

It is not just a skull.

It is not moving.

It just is a chalk painting.

It looks as if it is moving?