A Liar Speaks Nothing But The Truth
Three people are being interviewed to see if they can get a job at Hell Corporation. Out of the three people, only one person can get the job.
Interviewer: Why do you guys deserve to be here?
Banker: I am a thief, sir! I cheat, scam and steal whenever I can!
Politician: I am an idiot, sir! I declared war on my ally!
Teacher: I am a propagandist, sir! I always tell my students lies!
Interviewer: Which one of you guys is a liar?
Banker: The stupid politician is a liar.
Politician: The cheating banker is a liar.
Teacher : Both the banker and the politician are liars.
Given these statements, who is the real liar?
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1 solution
In the beginning statement, the baker said he stole money, the politician said he was an idiot while the teacher said he was a liar. If the teacher was telling the truth when he said he was a liar, then it is obvious he is a liar. If the teacher was lying when he said that, the he just lied which proves that he is a liar.
In the second statement, the banker said the politician was a liar, the politician said the banker was a liar while the teacher said that the banker and the politician were liars. Because it is already proven that the teacher is a liar, we can say that the teacher is the real liar.