Answer:
I sleep by day, I fly by night. I have no feathers to aid my flight.
It floats over the land, It cuts the tallest mountain, Its voice is like a fountain, Its body like a snake, Will flow into a lake.
I am round as a bowl, deep as a tub, but all the world's water couldn't fill me up.
What word has kst in the middle, in the beginning, and at the end?
Walk on the living, they don't even mumble. Walk on the dead, they mutter and grumble.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?