Answer:
What do people spend a lot of money on every year, but never want to use?
The higher I climb, the hotter I engage. I cannot escape my crystal cage. What am I?
Although it sounds like I work on a transportation device I actually work in a restaurant.
I am like thunder in your cranium
I run around the city but I never move.
How can you throw a ball as hard as you can, to only have it come back to you, even if it doesnβt bounce off anything?