Answer:
found at the back of the book.
I am the kind of nut that is empty at the center and has no shell.
I am enjoyed by some, despised by others. Some take me for granted, some treasure me like a gift. I last forever, unless you break me first. What am I?
As a state in America I am round on both sides and high in the middle.
I work when I play and play when I work. What am I?
When is it bad luck to see a black cat?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic