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?

In a certain country ½ of 5 = 3. If the same proportion holds, what is the value of 1/3 of 10?

Find the missing number: 1, 2, 3, 10, 10, ?, 9,802

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

Solve below rebus puzzle?

Count the number of triangles in the below picture?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

If a wheel has 54 spokes, how many spaces are there between the spokes?