Answer:
A wonderful elixir, It is your fluid fixer. Gulp it down and turn like a concrete mixer. Dark as night and sweet as sin, It's like liquid heroin.
What nut has a hole and is squishy?
What can be grown without sun or soil and can either provide nourishment or deliver poison?
You throw away the outside, eat the inside, and throw away the inside. What is it?
Strip the skin under my skin, and my flesh you'll reveal. It tastes sweet and tart, now throw out the peel. What is it?
What is round, has a twin, and sees more than most?