Unlisted Phone Number

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?




Similar Riddles

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Asked by Neha on 23 Mar 2022


A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Asked by Neha on 10 Mar 2022

Replace the question mark with the correct number.

Replace the question mark

Asked by Neha on 09 May 2023


Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

Asked by Neha on 19 Aug 2021

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

Are You A Chess Player?

Asked by Neha on 08 Apr 2024

By what process could you make a 'Tea-Table' into food?

Asked by Neha on 16 Aug 2023


I have eight fingers and two thumbs but I do not live. What Am I?

Asked by Neha on 21 Mar 2024

Distances from you to certain cities are written below.

BERLIN 200 miles

PARIS 300 miles

ROME 400 milesAMSTERDAM 300 miles

CARDIFF ??? miles

How far should it be to Cardiff ?

Asked by Neha on 25 Feb 2021

Can you spot the man between the coffee bean in the picture below ?

Spot the Man

Asked by Neha on 31 Aug 2021


John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?

Asked by Neha on 24 Nov 2025

Hot Articles

Amazing Facts

Out of the Box

The phrase “thinking outside the box” was popularised from the solution to a topographical puzzle involving 9 dots in a box shape.