Tried couple of times to play 20Q (guess what i am thinking in 20 questions) game but it seems that it never finds any answer. My guess is that it does not retain previous data on previous game playing trials. It is an open text language processing model which basically is google textual search -but with added chat-like appearance. Did you try it yet? let me know if it guessed your attempts.

You can still use re-usable aluminum coffee pods for a pod machine if you don't want any waste. Pod machines can also be cheap. Or better get a press maker for grounded coffee.