1. What's the name of the cartoon leprechaun who's been in pursuit of his "magically delicious" cereal since 1964?

2. What type of fuel is named for the German who invented the compression-ignition engine?

3. Televangelist Jimmy Swaggart and his famous cousin, a pioneer of rock and roll, both share what middle name?

4. What famed New York City socialite is the mother of newsman Anderson Cooper?

5. What model of Jeep, on sale since 1987, is the most direct descendant of the Jeeps driven by GIs during World War II?

What’s the "Kennection" between all five answers?