Eleven plus two equals Nine

If eleven plus two equals one, what does nine plus five equal?




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Given that

(78)^9 = 6
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Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

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13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

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Amazing Facts

Out of the Box

The phrase “thinking outside the box” was popularised from the solution to a topographical puzzle involving 9 dots in a box shape.