Inspector Okafor is checking the order in which five suspects left the locked library. Gwen left before Boris. Elena left before Jonas. Boris left before Mara. Jonas left before Gwen. Who left fourth?
Boris.
Putting every clue in a line gives this order: Elena, Jonas, Gwen, Boris, Mara.
About this riddle
Detective riddles are tiny mysteries. Look for the detail in the story that does not fit; it is usually the clue that solves the case.
Difficulty: Hard. More like this: Detective riddles with answers or try Truth & Lie Island for a different kind of puzzle.
More detective riddles
The swimmer is bigger than the sand castle, and the sand castle is bigger than the ice cream cone. Which one is the smallest?
Five guests sign the hotel log one by one, and the manager remembers only these facts. Elena signed before Luca. Kira signed before Aria. Luca signed before Kira. Aria signed before Pavel. Who signed third?
The eraser is bigger than the student, and the student is bigger than the book. Which one is the smallest?
Three kids race to build the tallest apple tower. Leo finished before Max. Max finished before Omar. Who finished last?
Three kids race to build the tallest picnic basket tower. Leo finished before Sam. Ida finished before Leo. Who finished last?
Inspector Quinn is checking the order in which five suspects left the locked library. Pavel left before Kira. Luca left before Aria. Kira left before Iris. Iris left before Luca. Who left second?