Answer:
I tell people to be careful when handling boxes.
Cloud is my mother. Wind is my father. I come down but never go up. What am I?
I am all around, yet to me you are half blind. Sunlight makes me invisible and difficult to find. What am I?
I am in the past, never in the future. I don't exist, but have existed. I saw what you saw, and this is what I will ever see. What am I?
What flies without wings?
What an fill a room but takes up no space?