Answer:
Do you know what you can hold without ever touching it?
What five-letter word becomes shorter when you add two more letters?
You use it between your head and your toes, the more it works the thinner it grows.
What is the freedom of birds and the pen of old men?
What has two legs but doesn't walk?
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.