STATEMENTS are WRONGS say that I am certainly not over 40 year, means S will be over 40 yearsM says that I am 38 years and you are at LEAST 5 years OLDER than me, which means M is not 38 years old, and also S is not at least 5 years older than M.S says you are at least 39 years which means M is not at least 39 years.Hence, the age of M and S cannot be determined.