Answer:
Sitting down you have it, Standing up you don't.
If someone calls you this, it might be time to consider hot wax
What goes up let's of a load and come back down
What can be white and yellow at the same time?
I go around in circles, But always straight ahead Never complain, No matter where I am led.
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.