Answer:
I am a mountain at night, meadow at day. What am I?
you can throw me away but I will always be coming back
I go from house to house a messenger small and tight. Whether it rains or snows I sleep outside at night.
I am a word. I become longer when the third letter is removed. What am I?
I have a neck and no head, two arms but no hands. I'm with you to school, I'm with you to work. What am I?
I am your mother's brother's only brother in law. Who am I?