In an island peopled by Knights (who always say the truth) and Liars (who obviously always lie), two persons spoke about each other.
A said: "B would say I lie."
B said: "That is true."
Can anything be deduced as to what kind is each of them?
(In reply to re(2): Solution
by Brian Wainscott)
In this case, there is no ambiguity: since liars tell lies all the time, both "I am lying" and "I tell lies" imply that the speaker is a liar. Anyway, I meant the second interpretation.