DanMann
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An astronaut arrives to mars.
He meets two inhabitants. A spotted martian and a striped martian.
The astronaut knows that there are two types of inhabitants. One who is hostile and lies all the time, and the other one is friendly and tells the truth.
The astronaut needs help with directions.
So he asks the striped martian: "Are you a truth teller?"
A spotted martian commented instead: "He will say 'Yes'. But he will tell you a lie!"
How does the Martian know who is the truth teller?
He meets two inhabitants. A spotted martian and a striped martian.
The astronaut knows that there are two types of inhabitants. One who is hostile and lies all the time, and the other one is friendly and tells the truth.
The astronaut needs help with directions.
So he asks the striped martian: "Are you a truth teller?"
A spotted martian commented instead: "He will say 'Yes'. But he will tell you a lie!"
How does the Martian know who is the truth teller?
