Answer:
With three leaves, I am just a plant. Add another leaf and everyone will want me for good luck. What am I?
Good memory, skin like the sea. A great beast I am, yet vermin frightens me. What am I?
Never resting, never still. Moving silently from hill to hill. It does not walk, run or trot. All is cool where it is not. What is it?
I am like thunder in your cranium
David's father has three sons: Snap Crackle and ?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic