Answer:
What is the center of gravity?
Sally's mom has 5 children, Boby, Jimmy, Franky, Marly. Who is the last child?
What is so delicate that even mentioning it breaks it?
Precious stones in a pack of cards.
In birth I spring forth, in life I unfold. In death I wilt and die, but rebirth restores all.
Do what he says and you'll be fine, don't and you lose the game.