Puzzle: The Fork in the Road A logician vacationing in the South Seas finds himself on an island inhabited by the two proverbial tribes of liars and truth-tellers.
A logic problem: What question should the princess ask? A princess visits an island inhabited by two tribes. Members of one tribe always tell the truth, and.
A simple example of this can be found in the following riddle Gardner wrote in his book Entertaining “An island is inhabited by two tribes.