Old Math Professor

A college math professor and his wife are both 60 years old. One evening the wife comes home and finds a note from her husband. It says: "My dear, now that you are 60 years old, there are some things you no longer do for me. I am at the Holiday Inn with my 20-year-old student. Don't bother waiting up for me." He returns home late that night to find a note from his wife: "You, my dear, are also 60 years old and there are also things I need that you're not giving me. So, I am at the Motel 6 with one of your 20-year-old students. Being a math professor, I'm sure you know that 20 goes into 60 way more than 60 goes into 20. So, don't YOU wait up for ME."

Boxers or Briefs?

One day some guys were doing a survey between "boxers" or "briefs". They went to a 25 year old man and said "boxers" or "briefs"? He said briefs. They went to a 40 year old man and said "boxers" or "briefs"? He said boxers. Then they went up to a 80 year old man and said "boxers" or briefs"? And the old man replied  "depends?"

Yo Mama - Cottage Cheese

Yo mama so old, she has cottage cheese instead of milk coming out of her tits.