## 44.

Let's first consider the married couple - Mr. and Mrs. A. They make the following statements:

Mr. A: My wife is not a normal person.

Mrs. A: My husband is not a normal person.

Who is Mr. A and who is Mrs. A - a knight, a liar, or a normal person?
44. Mr. A cannot be a liar, because then his wife would be a knight and, consequently, could not be a normal person, which would mean that Mr. A's statement was true. For the same reason, Mrs. A cannot be a liar either. Therefore, neither Mr. A nor Mrs. A can be knights (otherwise the other spouse would be a liar). Thus, Mr. A and Mrs. A are normal people (and both lie).