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Are the steps heading up or down?
Which direction is the vault door opening?....Inward?
Outward?
How many cubes do you see simultaneously.....watch
for 20-30 seconds
Can you find 10 faces in this picture?
How many people are in the left picture?
Do you see a rabbit or a duck?
If you follow the movement of the rotating pink dot, the dots will remain
only one color; pink. However if you stare at the black "+" in the center, the moving dots turn to green.
Now, concentrate on the black "+" in the center
of the picture. After a short period, all the pink dots slowly disappear, and all you see
is a single green dot rotating.
There
really is no green dot, and the pink dots don't really disappear.
Hmmm? We know things aren't always
black & white. Are they always pink or green?
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