Answer:
I am needed for most animals and hardcover books. What am I?
In spring, I am gay in handsome array. In summer, more clothing I wear. When colder it grows, I fling off my clothes. In winter, quite naked appear. What am I?
A hole in a pole. Though I fill a hole in white I'm used more by the day and less by the night
The more you take away from me the bigger I shall get.
I build up castles. I tear down mountains. I make some men blind, but I help others to see. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic