Answer:
Stealthy as a shadow in the dead of night, cunning but affectionate if given a bite. Never owned but often loved. At my sport considered cruel, but that's because you never know me at all.
My prefix is food. My suffix is rude. My infix comes in rounds. I keep you off the ground. What Am I?
Forward I’m heavy, but backwards I’m not.
Halo of water, tongue of wood. Skin of stone, long I've stood. My fingers short reach to the sky. Inside my heart men live and die.
I am the greatest teacher out of them all, but alas in the end I kill my pupils.
I have feet on my head
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?