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

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

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Can you solve the rebus below?

Brain Game Riddle

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Why 1729 is a magic number? Answer Logically.

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Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

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Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

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If all the below statements are true

1. Gianni was either in Italy or France in 1997.
2. If Gianni did not kill Versace, Hilton must have killed him.
3. If Versace died of suffocation, then either Gianni killed him or Versace committed suicide.
4. If Gianni was in Italy in 1997, then Gianni did not kill Versace.
5. Versace died of suffocation, but he did not kill himself.

Who killed Versace and where was Gianni in 1997?

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Find the next number in the following series:
6, 14, 26, 98, __?

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A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
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(b) If 20 players took part in the tournament, how many matches were played?

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Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

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On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

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Crossword puzzles

In the 1920s, people feared that crossword puzzles would contribute to illiteracy.