The Ambiguous Cat
Take a quick look at this cat on a stairway. Do you think that the cat is climbing up the stairs and heading down the stairs? Depending on how you look at it, you can probably perceive either to be true. Maybe there are some clues on the photograph that could help you draw your own conclusion.
I have my opinion, but I do not know what the correct answer is. What do you think? Is the cat heading up the stairs or down the stairs?
To see another ambiguous cat, have a look at the cat and mouse optical illusion.