Five guests sign the hotel log one by one, and the manager remembers only these facts. Dmitri signed before Boris. Aria signed before Dmitri. Felix signed before Aria. Boris signed before Mara. Who signed fourth?
Boris.
Putting every clue in a line gives this order: Felix, Aria, Dmitri, 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
Three trick-or-treaters rang a doorbell: a ghost, a witch and a pirate. The ghost came before the witch, and the pirate came last. Who was first?
The pumpkin is bigger than the pie, and the pie is bigger than the turkey. Which one is the smallest?
Inspector Okafor is checking the order in which five suspects left the locked library. Boris left before Kira. Aria left before Pavel. Pavel left before Jonas. Jonas left before Boris. Who left third?
A gift tag says "For the one in the green hat who wears glasses." Mia wears a red hat. Leo wears a green hat and glasses. Who gets the gift?
Inspector Tan is checking the order in which five suspects left the locked library. Dmitri left before Nico. Felix left before Dmitri. Pavel left before Felix. Gwen left before Pavel. Who left second?
Three kids race to build the tallest ice cream cone tower. Mia finished before Noah. Noah finished before Omar. Who finished last?