Answer:
Its title means book.
What kind of pet always stays on the floor?
Always old, sometimes new. Never sad, sometimes blue. Never empty, sometimes full. Never pushes, always pulls.
What goes in, but never through? I've got some and so do you. We might lend one, or even two, but only if our trust is true.
Feed me and I live, give me drink and I die.
I can only be played on a windy day
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?