Why do i find Madelin Macann jokes so funny? i know its wrong  whats wrong with me/us?

• Q. What's the difference between Madeleine McCann and Madeleine McCann jokes?
  A. Madeleine McCann jokes will get old.

• Q. What's the difference between Pope John Paul II and Madeleine McCann?
  A. The Pope died a virgin.

• Q. What's the difference between Madeleine McCann and a tan?
  A. A tan doesn't dissapear until after the holiday.

• Q. What's the difference between Madeleine McCann and the Jews?
  A. The Jews have some chance of celebrating this Christmas.