Answer:
When you need me, you must find me. When you find me, you no longer need me. What am I?
What can be heard in court or used to carry briefs?
I will disappear every time you say my name. What am I?
The more you take away from it the larger it becomes. What is it?
Six legs two heads two hands one long nose. Yet I use only four legs Wherever I go.
No matter how little or how much you use me, you change me every month.