Almost everyone needs it, asks for it, gives it, but almost nobody takes it. What is it?
What disappears the moment you say its name?
What begins with T, ends with T and has T in it?
What has no hands but might knock on your door, and if it does you better open up?
What is easy to get into, but hard to get out of?
What can travel around the world while staying in a corner?
What has an eye but cannot see?
What flies without wings?
What is harder to catch the faster you run?
What gets whiter the dirtier it gets?