Answer:
What kind of room doesn't have physical walls?
What starts with the letter T, is filled with T and ends in T?
What is something yet nothing, but if you fill it up it will disappear?
This is a shape and a symbol that we literally cannot live without. What is it?
What has a neck and no head, two arms but no hands?
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.