perplexus.info :: Liars and Knights : More knights,liars,and knaves

Home > Logic > Liars and Knights

More knights,liars,and knaves (Posted on 2003-07-07)

Knights always tell the truth,liars always lie,and knaves alternate between truths and lies.

Two people named Jimmy and Johnny make the following claims.

Jimmy:I am a knave.
Johnny:Jimmy is not a knight.
Jimmy:Johnny is a knave.
Johnny:Jimmy is a knave.

What are each?

See The Solution Submitted by Tim Axoy

Rating: 3.5556 (9 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

I'm Jimmy and I'm not a Knave!

| Comment 5 of 19 |

C'mon! This was too easy!
Jimmy told the truth--he is a knave. Johnny told the truth both times--Jimmy is not a Knight, he's a Knave. And Jimmy lied--Johnny is not a knave.

Jimmy Knave
Johnny Knight.

Posted by Jim C on 2003-07-07 07:33:25

Please log in:

Login:
Password:
Remember me:

Sign up! \| Forgot password

Search:

Search body:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info