Answer:
This small creature kills even the largest one.
What jumps when it walks and sits when it stands?
I am a mammal that lives in the sea. I have flippers and am known for my intelligence. What am I?
I'm a farm bird known for waking people up early in the morning. What am I?
I say hoot and I'm wise. I sleep during the day and hunt at night. What am I?
You use it between your head and your toes, the more it works the thinner it grows.