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

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

Asked by Neha on 23 Sep 2021


A Japanese ship was en route to a mission on foreign seas. The captain of the ship felt tired and thought of taking a bath. He went for taking the shower and removed his diamond ring and Rolex and kept them on the table. When he returned after taking the bath, he found that the ring and watch were stolen.

He called the five members of the crew whom he suspected and asked them what they were doing for the last 15 minutes.

The Italian cook (with a butcher knife in hand): I was in the fridge room getting meat for cooking.

The British Engineer (with a high beam torch in hand): I was working on a generator engine.

The Pakistani seaman: I was on the mast correcting the flag which was upside down by mistake.

The Indian Radio officer: I was trying to make a contact with the company to inform them about our position.

The American navigation officer: I am on night watch, so I was sleeping in my cabin.

Upon listening to them, the captain caught the lying member. Who do you think stole the valuables?

Asked by Neha on 10 Apr 2024

I travel all around the world but always stay in the corner. What am I?

Asked by Neha on 09 Mar 2022


Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

Asked by Neha on 08 Sep 2021

Count the number of triangles in the picture below:

Counting You Should Know

Asked by Neha on 16 Jul 2024

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

Asked by Neha on 22 Dec 2020


It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

Asked by Neha on 21 Sep 2023

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

Asked by Neha on 14 Mar 2022

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

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Why do people go to bed?

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Amazing Facts

Rubik’s Cube

The inventor of the Rubik’s Cube didn’t realize he’d built a puzzle until he scrambled it the first time and tried to restore it.