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Odd people (Posted on 2005-09-12) Difficulty: 3 of 5
As everyone knows, knights tell the truth all the time, and liars lie all the time. At least, this is what evenly behaved knights and liars do.

Less known is that there are also odd knights, who on odd-numbered days lie all the time. (On even-numbered days, however, they behave evenly, and tell the truth.) Also, there are odd liars, who on odd-numbered days, tell the truth about everything, while they lie the rest of the days.

Someone said: "Today's the 3rd. Trust me, I'm telling the truth. I'm odd. I didn't lie yesterday. I'm not a knight."

At first, this seemed illogical, and I thought he couldn't be either a knight or a liar, even or odd, but after a while the solution dawned on me and I found the error in my reasoning. What is he?

See The Solution Submitted by e.g.    
Rating: 4.4444 (9 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Some Thoughts Who's the real liar? | Comment 8 of 13 |
It strikes me as "odd" that when asked: "What is today's date?", the odd-knight will lie more often than the odd-liar.
  Posted by Leming on 2005-09-12 19:05:08
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