There is a green glass door and only certain things can go through. Find the rule. A llama can get through but an alpaca cannot. A yellow ring can get through while a pink one can’t. A hallway could get through but a window can’t. A mirror could. Posted on September 18, 2018September 18, 2018 by Riddles with Leave a comment AnswerAny word with double letters right next to each other. Yellow green llama door glass mirror Shannon three wood etc.