Answer:
I can be moved. I can be rolled. But nothing will I hold. I'm red and I'm blue, and I can be other colors too. Having no head, though similar in shape. I have no eyes - yet move all over the place.
A reaction to being spooked that takes its name from waterfowl
This is in a realm of true and in a realm false, but you experience me as you turn and toss.
Come up and let us go. Go down and here we stay.
who do you think you know but sometimes you don't
You use it between your head and your toes, the more it works the thinner it grows.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?