You are on an island and you meet three people, Jeswin, Parker and Crasbo. You know that they are either liars, knights or knaves (someone who alternates between truth and lie). They have a strange religion - for one half of the year they talk in English and for the other half they talk Gambalidarian (their language). Naturally, you arrive during the latter part of the year. You know that if you ask them what they are, they either say 'Blarg', 'Grot' or 'Cloysta', but you don't know which means what out of liar knight and knave. You also know that 'Jappa' means 'is a' and 'Bokka' means 'I am a'. They give the following statements:
Jeswin : Bokka Grot. Parker Jappa Cloysta.
Parker : Bokka Blarg. Crasbo Jappa Blarg.
Crasbo : Bokka Grot. Jeswin Jappa Cloysta.
What does Blarg, Grot and Cloysta mean in English, and what are each of the people?
Given their statements we can determine:
Jeswin : Grot (or Knight)
Parker : Cloysta (or Knave)
Crasbo : Blarg (or liar)
Both a Knight and a Liar will say that they themselves are the truthteller, but the Knave is free to call himself whatever he chooses. So, naturally the one who calls himself something other than the rest would (Knight) must be the Knave. In this case, he is calling self a 'Blarg', or a liar. Then, knowing that the Knave alternates truth and lies per sentence, we know that Crasbo is the real 'Blarg', so Jeswin must be the true 'Grot', or Knight.
To check our findings, we can see that Jeswin confirms that Parker is the Cloysta, or Knave, and Crasbo lies as to what Jeswin is.
∞ Magick is not to be taken lightly...