Riddle: Kimberly's mother has seven grandchildren. The first six grandkids are named Monday, Tuesday, Wednesday, Thursday, Friday, and Saturday respectively. What is the name of the seventh grandchild.
Answer: The seventh grandchild's name isn't "Sunday"; it's "What", because "What is the name of the seventh grandchild." is a statement, not a question.
Riddle: There are eight people waiting at a bus stop. When an empty bus approaches the stop, half of these people get in. Then, the bus goes to the second stop, where five people are waiting. Two of the people in the bus get out at this stop, while three of the people at this bus stop get in. Finally, the bus goes to the third stop, where seven people are waiting. None of these people get in, but all of the passengers currently in the bus get out. How many people are in the bus now?
Answer: There is one person left–the driver. You know that buses can't go without a driver, right?
Riddle: One afternoon, Phoebe stopped by her favorite restaurant for lunch, but she saw a waitress and a client arguing. The waitress, Sandra, claims that the client, Dave, had ordered a breakfast special and was now refusing to pay. Dave said that he had only ordered a coffee. Phoebe knew who was lying instantly. Who was it?
Answer: Sandra was lying. You don't order breakfast in the afternoon.
Riddle: There are two species of citizens on a foreign planet: Hamburgs and Helphands. There are 10,000 Hamburgs, and Helphands make up 50% of the population. How many Helphands are on the foreign planet?
Answer: There are 10,000 Helphands on the foreign planet. If there are only two species of citizens on the planet, and Helphands make up 50% of the population, then Hamburgs must make up the other 50% of the population, with 10,000 of them. If there are 10,000 Hamburgs, then there are also 10,000 Helphands.
Riddle: Mr. Plessy, one of the best pilots in his town, came to his insurance company to file a report. He said that someone had robbed him in the street, but he couldn't see what the robber had looked like because of his poor eyesight. The insurance manager refused to proceed with the case and called Mr. Plessy a liar. Why?
Answer: Mr. Plessy is a pilot, but it's impossible to work as one if you have poor eyesight.
Riddle: Paul called his detective friend to report a theft. The man suspected his neighbor, Ms. Andrews, whom he thought stole his favorite figure. Paul said, "I was vacuum cleaning my room upstairs when I heard footsteps downstairs. I ran downstairs in time to see Ms. Andrews running away with my figure,". Ms. Andrews denied everything. Who should the detective believe?
Answer: The detective should believe Ms. Andrews. Vacuum cleaners are usually very noisy, so Paul couldn't possibly hear anything, let alone any footsteps.