Answer:
What is at the end of a rainbow?
I am the minerals vital for your good health.
So simple, that I can only point. Yet I guide men all over the world.
I'm found in socks, scarves and mittens. I'm found in the paws of playful kittens. What am I?
I am a kind of coat that can only be put on when wet. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.