Answer:
I have every color but no gold.
I make you weak at the worst of all times. I keep you safe, I keep you fine. I make your hands sweat and your heart grow cold. I visit the weak, but seldom the bold. What am I?
I am owned by Old McDonald.
I belong to you but others use me more often than you do
What is the difference between a poorly dressed man on a bike, and a well-dressed man on a unicycle?
No matter how little or how much you use me, you change me every month.