The eldest son is the mayor, the second son is the county magistrate and the third son is the mayor. This is a brain teaser. The eldest son is called the mayor, the second son is called the mayor, the third son is called the county magistrate, and the fourth son is called the mayor, so their father's surname is Yes.
1. Brainstorming originated in ancient India. It means that when thinking encounters special obstacles, you should quickly leave the habit of thinking and think about the problem from other aspects. Now refers to some intellectual questions that can't be answered by the usual way of thinking.
2. Brainstorming covers a wide range: educational, funny, mathematical, adult and so on. Brainstorming is a kind of entertainment and a popular word game.