Answer:
I come without being fetched at night, hide away as soon as daylight strikes. Although I may look small, I am much mightier than what you can imagine. What am I?
What can be as big as an elephant but weighs nothing?
A caribbean shape that makes ships disappear.
When you take away the whole from me there is always some left.
I am alive without breath and cold as death. I am never thirsty but always drinking. What am I?
A little house full of meat, no door to go in and eat.