Answer:
A man goes out in heavy rain with nothing to protect him from it. His hair doesn't get wet. How does he do that?
What goes up and down without moving?
I'm a starchy plant tuber that is one of the most important food crops, cooked and eaten fried, such as french fries.
What pulls you down and never lets go?
There is an ancient invention still used in some parts of the world today that allows people to see through walls. What is it?
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.