Answer:
I am free for the taking. Through all of your life, though given but once at birth. I am less than nothing in weight, but will fell the strongest of you if held.
A house of wood in a hidden place. Built without nails or glue. High above the earthen ground It holds pale gems of blue.
When the son of the water returns to the parent, it dies. What is it?
What do you throw out to use and take in when you're done?
My first master has four legs, my second master has two. My first I serve in life, my second I serve in death. Tough I am, yet soft beside. Against ladies cheeks I often reside.
What never gets any wetter no matter how hard it rains?