Weighing All

What four weights can be used to balance from 1 to 30 pounds?




Similar Riddles

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

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Can you find the missing number in the third row?
35 20 14
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5 2 ?

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The Little ant seems to be always confused. Do you know why?

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Replace the question mark with the correct number below.

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Find the odd

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If,
29 - 1 = 30
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Based on similar logic, Can you prove that the below algebraic equation is true?
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Which alphabet letter is a question?

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Amazing Facts

Crossword

The day before the 1996 U.S. presidential election, the NYT Crossword contained the clue “Lead story in tomorrow’s newspaper,” the puzzle was built so that both electoral outcomes were correct answers, requiring 7 other clues to have dual responses.