As you may know, on the island of Knights and Knaves, knights always tell the
Quote:
truth and knaves always lie.
Each inhabitant is either a knight or a knave. There is however an epidemic
that makes them sick. A diseased knight always gives false statements, and a
diseased knave always tells the truth.
There no way of knowing if someone is a knight or knave or sick apart from
logical deduction.
Two inhabitants make the following statements:
Jaf: Anipa is a knight.
Anipa: Jaf is a knave.
Jaf: Anipa is sick.
Anipa: Jaf is healthy.
Which of the four types are Anipa and Jaf.
(editor comment: names changed for anynominosity)
Jaf healthy Knight
Anipa sick Knight