Answer:
After you go through a fall, I will take over. All life will stall, or at least grow slower. What am I?
What invention lets you look right through a wall?
I don't live within a house, nor do I live without. Most will use me when they come in, and again when they go out. What am I?
I'm light as a feather yet the strongest person can't hold me for more than a few minutes. What am I?
What has many keys but can't open a single lock?
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.