Mr. Smith's Kids

Riddle: Mr. Smith has 4 daughters. They each have a brother. How many kids does Mr. Smith have?

Answer: Five, because Mr. Smith's daughters share a brother, so they all have a brother.

Source: https://www.riddles.com/index.php/5979

Mr. Smith has 4 daughters. They each have a brother. How many kids does Mr. Smith have? — Mr. Smith's Kids by Grayson Brust v1.

Riddle: Mr. Smith has 4 daughters. They each have a brother. How many kids does Mr. Smith have? Answer: Five, because Mr. Smith's daughters share a brother, so they all have a brother. — by Grayson Brust v2.