This suggestion is small, and probably won't require much work if implemented, but I think it would be really helpful. Since you can only make 20 guesses a day, it'd be nice to have a small counter to show how many times you've guessed on that day. This would keep Mind Reader from getting boring, since it is pretty tedious after a while.
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Rest in Peace Jewel the Cat- 2001?-to March 23, 2018
that would be good :) then you could play like, maybe 5 times, then come back to it and know you still have 15 goes left.
I actually support this, and any of the other games like this that don't already have counters. It should be just as simple as the quest counters were, and every bit as useful to the people who like to use it.