Answer:
I am a cold man without a soul. If there is warmth in me, it slowly will kill me. What am I?
Lives in winter, dies in summer, and grows with its roots upward. What is it?
I build bridges of silver and crowns of gold. What am I?
I rise and fall no matter what, only at finals rest do I not budge. What am I?
I'm written with two letters, said with one and seen with two. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.