Riddle: There is a green glass door in the middle of Minnesota. Only certain things can go through the door. Here is a list of thing that can and cannot go through the door:

Can: a riddle
Can't: an answer

Can: root beer
Can't: soda

Can: grass
Can't: field

Can: tree
Can't: bark

Can: pool
Can't: water

Can: roof
Can't: ceiling

What do all of the things that can go through the door have in common?
Answer: They all have double letters. (Like the words Green Glass Door)
Green Glass Door Riddle Meme.
Green Glass Door Riddle Meme.
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