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

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Buy me, smell me or deliver me, I do not change.

Who am I?

I have branches, but no fruit, trunk or leaves. What am I?

By using 'because' continuously three times, can you make an English statement ?

A woman is sitting in her hotel room and hears a knock at the door. She opens the door to see a man whom she’s never met before. He says, “I’m sorry, I have made a mistake, I thought this was my room.” He then goes down the corridor and into the elevator. The woman goes back into her room and calls security. What made the woman so suspicious of the man?

If 1+9+8=1, what is 2+8+9?