Ready for a riddle series? In the coming weeks, Seniorhelpline will present progressively harder "knights and knaves" puzzles. These logic puzzles take place on an island with two types of people: the knights, who always tell the truth, and the knaves, who always lie.
American mathematician and musician Raymond Smullyan named this type of puzzle in his 1978 book What Is the Name of This Book? You might remember a knights and knaves puzzle from the 1986 fantasy film, Labyrinth.
To start the series off, let's have a simple conversation with these knaves and these knights.
On the island of knights and knaves, you are approached by two people. The first one says to you, "we are both knaves."
What are they actually?
Is the first person a knight?
When you know if these two fellows are knights or knaves, or one of each, check the solution here.
*See all of our riddles here.