Riddle: During the first week of July, Jenny came back from a business trip and saw that her house had been burgled. She called the police and told them the following story: "My business trip was supposed to be between the 29th and the 31st of the previous month, so I was supposed to be gone for three days. However, I returned just now and found my house in a huge mess! Someone must have robbed me!". Jenny was arrested for a false report. Why?
Answer: Jenny came back during the first week of July, so the previous month was June. She couldn't be away for business between the 29th and the 31st of June because June 31st doesn't exist; there are only 30 days in June.
Riddle: On the Fourth of July, someone robbed the Johnsons. Police officers questioned three neighbors-Kyle, Rachel, and Sam. Kyle said that he was watching some movies with his family. Rachel said that she was having a barbecue outside to celebrate Independence Day. And Sam said that he was at the post office; all of his colleagues saw him. Who is lying?
Answer: Sam is lying. The Fourth of July is a public holiday; he couldn't be working at the post office on this day.
Riddle: Mrs. Nimbus left some money for her eldest son, Garrett, to go grocery shopping. When Garrett went to take the money, he didn't find it. Mrs. Nimbus suspected that one of her two younger kids-either Abby or Rick–had stolen it, so she questioned them. Abby said that she had put the money underneath a book so that it wouldn't fly away. Rick said that he had put the money inside the book between pages 51 and 52. Who's the thief?
Answer: Rick is the thief. Books normally have their odd-numbered pages on the right, while the even-numbered pages are on the left. Pages 51 and 52 are on two sides of the same sheet, so Rick couldn't have put the money between those two pages.
Riddle: Two friends-Nora and Ashley-were going home after doing their weekly grocery shopping. Ashley began to complain about how heavy her bags were, and Nora responded, "If you gave me one of your bags, I'd have double the number of bags you have! And if I gave you one of mine, we'd have the same number of bags!". How many bags does each friend have?
Answer: Nora has seven bags, while Ashley has just five bags.
Riddle: You are a monster hunter. You know that werewolves either tell only truths or only lies. One day, you meet up with your friends-Daniel and Cameron-and ask if either one of them is a werewolf. Daniel says, "Cameron is a lying werewolf. And I'm a human,". And Cameron says, "Daniel is telling the truth,". Can you identify who is who?
Answer: You know that werewolves cannot tell half-truths, so Daniel's statements have to both be either true or false. If they are both true, then Daniel is a human, and Cameron is a lying werewolf. But then, Cameron is telling the truth, too. This contradicts Daniel's second statement. Therefore, both of Daniel's statements are false, and Cameron is also lying. It means that Daniel is a werewolf and Cameron is a lying human.
Riddle: Your spaceship lands on a foreign planet. A stranger in his workout clothes greets you to the entrance of the base. You go inside the base and wait for it to depressurize before removing your space suit. But before you get a chance to remove it, you get a message that someone at the base is an impostor. Who could it be–a man who covers his face because he has a sunburn, a woman with flaky patches all over her skin, or the stranger you saw earlier?
Answer: The stranger you saw earlier is an impostor because a human who is not wearing a spacesuit cannot survive outside of the base in the foreign planet's atmosphere, but this stranger somehow survived without his spacesuit.
Riddle: Shane is a young and talented scientist who always works in his lab alone. One day, he's found unconscious in his lab. Police officers question three other scientists. Ian claimed to be Shane's lab assistant, insisting that he would never hurt his lab partner. Travis said that he was doing research on a separate project. And Patricia said that she was cleaning the lab. Who hurt Shane?
Answer: Shane always worked in his lab alone, and he never had any assistants. Therefore, Ian lied about being Shane's assistant.
Riddle: There are 10 fish in my fish tank. Suddenly, two of them drown, three of them swim away, and four of them die. How many fish are left in the tank?
Answer: There are still 10 fish left. For one thing, fish can't drown. Plus, none of the fish could have swam away because they're still in the tank.