The Green Glass Door And Other Riddles

There is a pool but no water apples but no grapes school but no learning trees but no branches teeth but no mouths halloween but no candy and.
The green glass door and other riddles. There is a green glass door in the middle of minnesota. There is a pool but no water apples but no grapes school but no learning trees but no branches teeth but no mouths halloween but no candy and mirrors but no reflections. What is the logic behind this. In the valley of the green glass door.
There is a green glass door in the middle of minnesota. There are roofs but no ceilings. Here is a list of thing that can and cannot go through the door. What is allowed beyond the green glass doors.
Only certain things can go through the door. In the valley of the green glass door. This of course is especially true for younger players. Can you solve this riddle.
Only certain things can go through the door. There are doors but no knobs. Only use words that start with or contain other words bummer starts with bum doggerel starts with dog etc although the green glass door riddle is popular almost every group has members who have not heard of it and find it a new experience.