Answer:
An artΒ-form and its colour-ful result.
We are two brothers on opposite sides of the road, but we never see each other. Who are we?
This is a dead giveaway
I'm a starchy plant tuber that is one of the most important food crops, cooked and eaten fried, such as french fries.
Mostly worn by women or girls, this is sometimes shiny like silver or gold, and sometimes it is made of pearls.
What never gets any wetter no matter how hard it rains?