Answer:
Thousands lay up gold within this house. But no man made it. Spears past counting guard this house, but no man wards it.
Man walks over, and man swims under. In times of war, it can be burned asunder. What is it?
Has no feet, but travels far. Is literate, but not a scholar. Has no mouth, yet clearly speaks.
What is neither inside the house nor outside the house but a necessity for any home?
You get many of me, but never enough. After the last one, your life soon will snuff. You may have one of me but one day a year, When the last one is gone, your life disappears.
What do angels sing in the shower?