Who Ate The Cake?
Riddle: Serena made a cake for her husband's birthday. She wanted to save it for the evening, but at that time, Serena found that someone had eaten the cake! The woman concluded that it must have been one of her kids–either Justin, Theodore, or Mia–so she questions them. Justin says, "It was Theodore!". Theodore says, "It was Mia!". And Mia says, "Theodore is lying!". Assuming that only the culprit lies, and that the innocent kids tell the truth, who ate the cake?
Answer: Theodore ate the cake. If Justin was the thief, then he and Theodore would be lying, and Mia would be telling the truth, which contradicts the conditions. And if Mia was the thief, then she and Justin would be lying, and Theodore would be telling the truth; this also goes against the rules. Therefore, Justin and Mia are telling the truth, and Theodore is lying, which means that Theodore is the thief.
Source: https://www.riddles.com/11396
