Answer:
In the evening I'm long, in the morning I'm small; When seen in a ballroom, I'm nothing at all.
What goes with a car, comes with a car, is no use to a car but a car cannot move without it?
In the forest, this blends in just right, but every December it is covered with lights. What is it?
Three little letters. A paradox to some. The worse that it is, the better it becomes.
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.
I am your mother's brother's only brother in law. Who am I?