Question: A man goes to work taking a very long bus route, transferring to different buses many times. First, he gets on bus number 60, then bus number 12, then bus number 240, then bus number 48. Which two buses would he get on next?
Answer: Bus 960, then bus 192. The pattern is bus number times 20, then divided by 5.
Question: You have a glass of water that looks about half full. How can you tell, only using the glass of water itself, if the glass is half full or not?
The glass is a right cylinder.
Answer: Tip the glass of water until the water reaches the rim of the glass and if the water lines up perfectly with the bottom rim of the glass, it is half full.