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?
Source: https://riddles.com/11415