Incredible…to Be Accused Of Theft!
Riddle: Four citizens were accused of robbing a store. Suspect A says, "I didn't rob the store,". Suspect B says, "Suspect C robbed the store,". Suspect C says, "Suspect B is lying,". And Suspect D says, "Suspect A is telling the truth,". Only one suspect is telling the truth. Who robbed the store?
Answer: Suspect A robbed the store; Suspect C is telling the truth. If Suspect B was the thief, then A, C, and D would all be telling the truth. If Suspect C was the thief, then A, B, and D would all be telling the truth. If Suspect D was the thief, then Suspects A, C, and D would all be telling the truth again. Therefore, only Suspect A can be the thief.
Source: https://www.riddles.com/index.php/11463
