twice of ten is 22

Prove that twice of ten is the same as twice of eleven.




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If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

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Three people enter a room and have a green or blue hat placed on their heads. They cannot see their own hat but can see the other hats.
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Outside a massage parlour, there is a board that reads
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1 + 9 + 8 = ?
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Only one color, but not one size,
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what does this below rebus represent identXQQQQQME

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Gambling

In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.