Answer:
Neither bought nor sold but more valuable than gold. It is built but not by hand. What is it?
Each of these ends in a kettle full of precious metal and the double variety is quite awesome
My life can be measured in hours. I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.
Iron roof, glass walls, burns and burns and never falls.
If lightning strikes an orchestra who is the one most likely to get hit?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?