Answer:
I am never quite what I appear to be. Straight-forward I seem, but it's only skin deep. For mystery most often lies beneath my simple speech. Sharpen your wits, open your eyes, look beyond my exteriors, read me backwards, forwards, upside down. Think and answer the question...
Flat as a leaf, round as a ring. Has two eyes, can't see a thing.
A leathery snake, with a stinging bite. I'll stay coiled up, unless I must fight.
What is full of holes but still holds water
Up on high I wave away but not a word can I say.
What is always coming but never arrives?
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?