Answer:
A box without hinges, lock or key, yet golden treasure lies within.
With head without hair. With mouth without tooth.
Tall in the morning, short at noon, gone at night. But I'll be back soon.
With sharp edged wit and pointed poise. It can settle disputes without making a noise.
What is the freedom of birds and the pen of old men?
What is so fragile that saying its name breaks it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?