Secret tricks to remember your times tables
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22:40
Solving a legendary puzzle
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13:33
Ancient trick to calculate ANY square root
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14:22
Solve 2 to the x = 9 , what is x=? Can you solve this type of Algebra Equation?
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18:14
Could you pass this interview? The famous batteries and flashlight logic puzzle
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5:05
How to Calculate Faster than a Calculator - Mental Math #1
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9:33
FAILED LEGO ITEMS...
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11:19
Türkçe hakkında 10 eğlenceli gerçek
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15:32