	Marilyn vos Savant (; born 1946) is an American magazine columnist, author, lecturer, and playwright. She was listed as having the highest recorded intelligence quotient (IQ) in the "Guinness Book of Records", a competitive category the publication has since retired. Since 1986, she has written "Ask Marilyn", a "Parade" magazine Sunday column where she solves puzzles and answers questions on various subjects. Among them was a discussion of the Monty Hall problem, to which she postulated an answer in 1990.