Answer:
Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not. What am I?
I am perfect with a head perfect without a head; Perfect with a tail perfect without a tail; Perfect with either neither or both.
What has a thumb and four fingers but is not alive?
Who is your mother's only sister's son's brother's aunt's daughter's sister's father?
Soft and cuddly I'll pull on your heart. But take my last name and I'll tear you apart.
Give it food and it will live, give it water and it will die.