Answer:
Part carbon, part water, I am poison to the fishes. Many falsely claim my name, I am the pause that refreshes. What am I?
I am always hungry, I must always be fed. The finger I lick will soon turn red. What am I?
What has 13 hearts but no other organs?
What body part is pronounced as one letter, but written with three, only two different letters are used?
People make me, save me, change me, and raise me. What am I?
Give it food and it will live, give it water and it will die.