I shave every day, but my beard stays the same. What am I?

Which is the smallest number that you can write using all the vowels exactly once?

Can you replace the question mark with the correct number in the below table sequence?

I am sure no one can have two things for dinner. what are they?

How can a man go eight days without sleep?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

After undergoing a successful eye operation, A blind girl has just boarded a train to her home. The doctor asked her to open the bandages after 3 hours. On her train journey, she opened the bandages and within a fraction of the time she commits suicide by jumping off the train.

Though her operation was successful, Why did she commit suicide?

Which five letter word can be added at the end of below word to form a
valid word?

> Pin
> Check
> Boiling
> View

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

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?