Building Puzzle

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?




Similar Riddles

Shyla was sleeping in her apartment when suddenly a robber broke into her house. He asked her to stay quiet and started looting the cash and jewelry. Suddenly the landline phone started ringing. The robber pointed a gun at Shyla and asked her to pick up and talk without giving away the situation.

She picked up the phone and it happened to be her husband. She spoke, Is it an emergency darling? Do give me a call when your flight lands, I will prepare your favorite food that will help you relieve the stress. Then she hanged up.

10 minutes after, the police arrive at the scene and catch the robber. How did the police know about the robbery?

Asked by Neha on 31 Mar 2023


How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

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I am a prime number.
The double of myself is equal to the square of me.

which number am I?

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A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

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

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Name the three-letter word that can complete the below words:

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

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What has 88 keys?

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There was a strange boy who was born before his father. How can this be possible?

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Find the next number in the series

12, 20, 40, 72, 116, 172 ?

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As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

Fence the Fencing

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Amazing Facts

Challenging

There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.