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.
Different lights do make me strange, thus into different sizes I will change
When young, I am sweet in the sun. When middle-aged, I make you gay. When old, I am valued more than ever.
Bold are the first; true are the second; playful are the third; clever are the fourth; forceful are the fifth.
Iron roof, glass walls, burns and burns and never falls.
I am owned by Old McDonald.