Answer:
I have a foot but no leg. What am I?
I fill a room but take no space.
I am an English word that is as long as I am valued.
I am a little piece of paper, yet sometimes hold lots of value. I am all you need to get into big events, but will cost you. I am an important part of travel. And if lost, you're not coming. What am I?
My voice is tender, my waist is slender and I'm often invited to play. Yet wherever I go, I must take my bow or else I have nothing to say. What am I?
I start with T end with T and within me is T.