How Did He Win?
Riddle: Claudia invented a game for her friends to play at her birthday party. Here is how it goes: she will place two marbles into a box– one yellow marble, and one purple marble. The player will have to pull out one of the marbles from the box. If the marble is yellow, the player will win $100.00, but if the marble is purple, the player will have to pay $10.00. Claudia decided to trick the players by putting two purple marbles into the box, rather than one yellow and one purple. Brian watched the other players lose the game one by one. But when it was his turn, he won $100.00! How did he do it?
Answer: Brian pulled out one of the marbles, and, without showing it to anyone, quickly put it in his mouth, being careful not to swallow it. Then, he pulled out the remaining marble, which was purple, and showed it to everybody. According to the rules, it meant that the marble Brian had chosen was yellow. Claudia had to admit it, otherwise, everyone at the party would know that she was a liar.
Source: https://www.riddles.com/index.php/11317
