Answer:
I have a gown but I'm not a priest; I have a crown but I'm not a king.
I tremble at each breath of air, and yet can heaviest burdens bear. What am I?
I have a little pool with two layers of wall around it. One white and soft and the other dark and hard. Amidst a light brown grassy lawn with an outline of a green grass.
I am used to bat with, yet I never get a hit. I am near a ball, yet never thrown. What am I?
I am a ship that can be made to ride the greatest waves. I am not built by objects but built by minds.
I tell people to be careful when handling boxes.