Answer:
Even if you throw it away, it still comes back.
The part of the bird, that is not in the sky, Which can swim in the ocean and always stay dry. What is it?
Tickle with your fingers and a song it will sing. Be careful, though, you may break a string. What is it?
What has been around for millions of years but is never more than a month old?
A stylish winter top that covers your larynx.
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.