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?

Which is faster, Heat or Cold ? Explain.

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

Keyboard words are not in alphabetical order, Why?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

While sitting in the Car, John suddenly finds that one of the wheels was missing. John noticed that a killer is approaching towards him. John cannot get out of the car.

How will John escape?

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

Can you count the number of triangles in the picture below?

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