Answer:
David's father has three sons: Snap Crackle and ?
I look at you you look at me I raise my right you raise your left.
I can be sweet or sour. I do not rhyme with any other word
What is that you will break even when you name it?
I drive men mad for love of me, easily beaten, never free. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?