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Home > Logic > Liars and Knights
Knowing the Natives (Posted on 2003-08-16) Difficulty: 2 of 5
I met two natives on an island - Benny and Lenny. They are either a knight, a liar or a knave. Knights always tell the truth, liars always lie and knaves alternate between truth and lie. They tell me this:

Benny : We are both of the same type.
Lenny : I am a knave.
Benny : Lenny is a liar.

A knight then tells me what Lenny is. From this I was able to work out what they were.

What are Benny and Lenny?

See The Solution Submitted by Lewis    
Rating: 3.8000 (5 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re(3): ummm | Comment 6 of 14 |
(In reply to re(2): ummm by Mr. Spock)

There are three possible combinations of what Benny and Lenny could be, as Gamer said, but from the last clue (A knight then tells me what Lenny is. From this I was able to work out what they were) there can only be one solution.
  Posted by Lewis on 2003-08-16 13:03:44

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