Answer:
I go up when the rain comes down
You may enter, but you may not come in. I have space, but no room, I have keys, but open no lock. What am I?
If I drink, I die. If I eat, I am fine. What am I?
Fashions change, but what can a person wear that is never out of style?
Lighter than feather and softer than silk, yet the strongest man in the world cannot hold me for more than a few minutes. What am I?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.