Unlisted Phone Number

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?




Similar Riddles

I am working in a bus company. The company recently went under expansion and therefore there was not enough room for all the buses. As a result, twelve buses had to be stored outside.

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Can you calculate the number of buses that the company owns at present?

Asked by Neha on 18 Dec 2020


Find the next number in the sequence

1, 2, 6, 21, 88, __?

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John and his team plan to rob a safe. They got just one chance to break the code else the local police will be informed. Below are clues:
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E) One number is part of the code of the safe but is wrongly placed: 7 8 3

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Guess Movie Name

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Replace the question mark

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4377

3954

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8454

9831

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Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

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What is the Surname of Barbie Doll?

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Once while in his court, King Akbar asked Birbal to write something on a wall that makes one sad when read in good times and makes one happy when read in sad times.

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There is an exact a week gap between Christmas and New Year. Hence, It is obvious that the new year that comes right after Christmas comes on the same day of the week.

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In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki