Answer:
I climb higher as I get hotter. I can never escape from my crystal cage.
What type of shoes do spies wear?
Everyone asks for me but yet everyone hates to face me. For someone I am agony, for others I am relief! What am I?
Which vehicle is spelled the same forwards and backwards?
I am easy to waste and unstoppable. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.