Number Trivia

Can you find out which number multiplied by itself will give the output as 12345678987654321?




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All of Jacob's shoes are red except two.
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A rain drop fell from one leaf to another leaf and lost 1/4th of its volume. It then fell to another leaf and lost 1/5th of the volume. It again fell on another leaf and lost 1/5th of the volume.



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Can you calculate the total percentage of loss from the initial volume when the drop has fallen to the last leaf accurate up to two decimal places?

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In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
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Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

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Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

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John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

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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.