twice of ten is 22

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




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Can you discover the missing number in this series?

37, 10, 82
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96, 15, 87
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John went to buy some expensive, foreign chocolates. He only had Rs 100 with him. When he reached the shop, he got out and know that on those chocolates, there was a 15% import duty and 5% VAT.

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There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

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A gardener planted the Lemon trees in a mathematical ordered way (i.e. he planted a tree in rows).
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What is the minimum number of trees required by the gardener to have 19 rows of trees?

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The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

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You knock a Table over in the library, and suddenly 20 eyes are looking at you.

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Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

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Why do we preferably have round manhole covers and not square ones?

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A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

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In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?

Scratch the head

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