Answer:
A hill full, a hole full, yet you cannot catch a bowl full.
With sharp edged wit and pointed poise. It can settle disputes without making a noise.
It is a sound of empty, speak and it'll talk back plenty. But all the more you yack, you'll get the same words back.
What do you throw out when you need it but put away when you don’t?
What can go through glass without breaking it?
What never gets any wetter no matter how hard it rains?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?