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.
They try to beat me, they try in vain. And when I win, I end the pain.
What is eaten but not grown and was born in water but will disappear if soaked?
What common English verb becomes its own past tense by rearranging its letters?
What surrounds the world, yet dwells within a thimble?
What is so fragile that saying its name breaks it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?