Building Puzzle

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




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Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

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I am the first thing you need while camping.
I am always with the person named Marcos Valencia and Carrick.
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What am I?

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Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

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In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?

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What makes this number unique: 8,549,176,320?

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There was a greenhouse.
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What is It?

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What does man love more than life, hate more than death or mortal strife; That which contented men desire; the poor have, the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?

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You are an expert on paranormal activity and have been hired to locate a spirit haunting an old resort hotel. Strong signs indicate that the spirit lies behind one of four doors. The inscriptions on each door read as follows:

Door A: It's behind B or C
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Crossword puzzles

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