Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

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

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

Find the missing letter in the last circle logically in the given below picture.

If it took eight men ten hours to build a wall, how long would it take four men to build it?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

Shyla was sleeping in her apartment when suddenly a robber broke into her house. He asked her to stay quiet and started looting the cash and jewelry. Suddenly the landline phone started ringing. The robber pointed a gun at Shyla and asked her to pick up and talk without giving away the situation.

She picked up the phone and it happened to be her husband. She spoke, Is it an emergency darling? Do give me a call when your flight lands, I will prepare your favorite food that will help you relieve the stress. Then she hanged up.

10 minutes after, the police arrive at the scene and catch the robber. How did the police know about the robbery?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?