Knights always tell the truth,liars always lie,and knaves alternate between truths and lies.
Suppose you ask a native,"Are you a knight,a liar,or a knave?"
The native answers,and you are able to figure out what he is.
What is the native?
The native is a knave.
If he answered 'knight' he could be a knight, or a liar or a knave telling a e.
If he answered 'liar' he could only be a knave telling a lie
and if he answered 'knave' he could e a liar or a knave telling the truth
the answer the native gave must have been 'liar', meaning he could only be a knave.
Posted by Lewis
on 2003-05-26 11:59:18