How can the man go up all the time and come back to the same place over and over?
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RED X: The red squares are the same color in the upper part and in the lower part of the "X"
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The diagonal lines are parallel.
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There are no gray spots at the corners of the squares.
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The rows of black and white squares are all parallel.
Animated GIF version demonstrates this
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Impossible Triangle
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Parallel Lines at Sunrise
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The center circles are both the same size.
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The Vertical lines are both the same length.
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Three-Pronged Fork
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Ambiguous Cube (Does the front face go downward or upward?)
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There are only white circles at the intersections.
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All the bumps are identical.
The one in the lower right corner is upside-down.
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Wavy Squares? No!
The background of concentric circles makes the squares appear distorted.
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Rotating Wheels
The circles appear to rotate when you move your head closer and further away from the screen while looking at the dot in the center.
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Warped Square?
There are no curved lines in this figure.
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Frog or Horse (Watch the image rotate.)
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One or Two Faces (Is a candle melting over from the top of the head over the middle)?
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Indian Head or Eskimo?
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Rabbit or Duck (No, not a question from the Tasmanian Devil :) ?
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Saxophone Player or Woman's Face?
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Skull or Woman at a Vanity?
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Young Woman or Old Woman (Is the young woman's jaw line really the older woman's nose)?
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Horse and Rider in Canyon
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Face in the Meadow
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Old Man (and more...)
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Bridge of the Ship
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