I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside.
The man said, "Oh! I am really sorry, I thought this was my room."
He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man.
What made her suspicious of that man? He might have been genuinely mistaken.

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

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

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

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

What word is represented by this rebus?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

No one wants to have it, but if one got it, he does not want to lose it. What is It?