Answer:
An artΒ-form and its colour-ful result.
Without coolant, you'll have some trouble with this.
If you have me, you want to tell me. If you tell me, you don't have me.
What can go up but never come down?
Pointing North, South, East, and West it saves the lost and helps the rest. What is it?
What gets broken if itβs not kept?