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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.)
Solution Solution | Comment 10 of 14 |
Got the solution !

Benny's a Knave and Lenny's ia a Liar.

Thought process:

Given the problem there are three possible combinations:

Benny Lenny
Liar Knave
Knave Liar
Knave Knave

If one knows that Lenny is a Liar then only can she figure out what Benny is , hence the answer

cheers
  Posted by TheGreatOne on 2003-08-18 11:27:14
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