You should be able to perceive two different images (but probably not at the same time).
Click for AnswerFor each number in the matrix below, decide whether it is a normal or reversed number.
Click for AnswerLet’s try this fun Muller-Lyer Illusion — Which of the 2 circles surrounded by other circles is bigger?
Click for AnswerLook at this image of two wheels. Stare at the black dot in the center and slowly move your face toward and away from the image. What do you think notice happening?
Click for Answer