Answer:
I am a cold man without a soul. If there is warmth in me, it slowly will kill me. What am I?
I let water fall on you while everyone else stays dry.
I go from house to house a messenger small and tight. Whether it rains or snows I sleep outside at night.
I am expelled from you orally with a sound
I have a neck and no head two arms but no hands. I go with you to school I go with you to work.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.