A man lives on the fifteenth floor of an apartment building. Every morning he takes the elevator down to the lobby and leaves the building. In the evening, he gets into the elevator, and, if there is someone else in the elevator, or if it was raining that day, he goes back to his floor directly. Otherwise, he goes to the tenth floor and walks up five flights of stairs to his apartment. Can you explain why he does this?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

What begins with T, ends with T, and has T in it?

How many times can you subtract the number 5 from 25?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Different lights make me strange by changing me into different sizes. What am I?

who is silent in the parliament?