Logical Puzzles
Guess What ★★
Martin has one of the numbers 1, 2, or 3 in mind. Sophie is allowed to ask one question to Martin to find out which of these three numbers he has in mind. Martin will answer this question only with the answers "yes", "no", or "I don't know".
The question: Which question should Sophie ask Martin to find out in one time which number he has in mind?
The answer: Click here!