Answer:
I am what brings things together. Without me everything you see would be a total mass or debris everywhere. What am I?
I walk on 4 legs in the morning, 2 legs at noon, and 3 legs at night. What am I?
I may be made of metal bone or wood and have many teeth. My bite hurts no one and the ladies love me.
I need to be taken before you can have me. What am I?
When young I am sweet in the sun. When middle-aged I make you gay. When old I am valued more than ever.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.