Answer:
In the land of the green glass door there are riddles but no answers, sheets but no blankets, and books but no words. Name something found in the land of the green glass door.
I don't have eyes, but once I did see. Once I had thoughts, but now I'm white and empty.
The one who makes it, sells it. The one who buys it, never uses it. The one that uses it never knows that he’s using it.
What is as big as you are and yet does not weight anything?
Some live in me, some live on. And some shave me to stride upon. I rarely leave my native land. Until my death I always stand. High and low I may be found. Both above and below ground.
The strangest creature you'll ever find: Two eyes in front and many many more behind.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?