Answer:
What is often returned but is never borrowed?
If a man carried my burden, he would break his back. I am not rich, but leave silver in my track.
What is the freedom of birds and the pen of old men?
Slayer of regrets, old and new, sought by many, found by few.
What kind of pet always stays on the floor?
What is full of holes but still holds water
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?