Answer:
Where do fish keep their money?
My first though water cures no thirst my next alone has soul and when he lives upon my first he then is called my whole.
I wear a red robe with staff in hand and a stone in my throat.
I have three heads. Cut off one I become stronger. Cut off two I become ten.
I am needed for most animals and hardcover books. What am I?
What language does a billboard speak?