The Mustard Family Riddle
Riddle: Mr. and Mrs. Mustard have six daughters and each daughter has one brother. How many people are in the Mustard family?
Answer: There are nine Mustards in the family. Since each daughter shares the same brother, there are six girls, one boy, and Mr. and Mrs. Mustard.
Source: https://www.riddles.com/index.php/377
