Answer:
If I drink, I die. If I eat, I am fine. What am I?
I am all around yet to me you are half blind. Sunlight makes me invisible and difficult to find.
I sleep by day, I fly by night. I have no feathers to aid my flight. What am I?
Without a bridle, or a saddle, across a thing I ride a-straddle. And those I ride, by help of me, though almost blind, are made to see. What am I?
I am alive without breath and cold as death. I am never thirsty but always drinking. What am I?
A leathery snake, with a stinging bite. I'll stay coiled up, unless I must fight.