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Parrots

Parrots

These parrots are resting in a cube-shaped structure, but do you see everything normal?

Solution

Each of the two central columns cannot be at the same time on opposite sides of the cube. Keep looking, from top to bottom, each of them. You will see that they do not retain the plane of the face of the cube where they come from.

It is a painting by the flamenco artist Jos de Mey.