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

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

Asked by Neha on 30 Jan 2026


How many words can a pen with half refill write?

Asked by Neha on 03 Feb 2025

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?

Asked by Neha on 07 Feb 2021


What does this rebus mean?

O
N
C
E
TIME

Asked by Neha on 22 Feb 2025

I add 5 to 9 and get 2. The answer is correct, so what am I?

Asked by Neha on 04 Aug 2025

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

Asked by Neha on 14 Nov 2024


Identify the hidden meaning behind this picture?

Picture Riddle

Asked by Neha on 17 Feb 2023

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

Asked by Neha on 28 Dec 2023

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

Correct the Equation

Asked by Neha on 14 May 2021


Rumel, A detective who was mere days from cracking an international smuggling ring has suddenly gone missing. While inspecting his last-known location, you find a note:

710 57735 34 5508 51 7718

Currently, there are 3 suspects: Bill, John, and Todd. Can you break the detective's code and find the criminal's name?

Crack the Detective Code

Asked by Neha on 15 Mar 2021

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Amazing Facts

Gambling

In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.