What is an Optical Illusion? An optical illusion is a visual phenomenon where the brain misinterprets what the eyes see. Instead of perceiving an image exactly as it is, the brain fills in gaps, ...
11don MSNOpinion
How many numbers are on a clock? Try to solve the viral riddle
If you've got the time, we've got the riddle. And it's time for a riddle about time: How many numbers are on a clock?
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