Question: Who wrote the episode with production code 1AJN05?
SQL: SELECT "Written by" FROM "1-23242933-2" WHERE "Production code" = '1AJN05';

Question: How many different series numbers are there for the episode seen by 7.84 million people in the US?
SQL: SELECT COUNT("No. in series") FROM "1-23242933-2" WHERE "U.S. viewers (millions)" = '7.84';

Question: How many millions of people in the US saw the episode titled "Francine's Flashback"?
SQL: SELECT "U.S. viewers (millions)" FROM "1-23242933-2" WHERE "Title" = '"Francine''s Flashback"';

Question: What's the series number of the episode written by Dan Vebber?
SQL: SELECT MAX("No. in series") FROM "1-23242933-2" WHERE "Written by" = 'Dan Vebber';

Question: How many different titles are there of episodes that have been seen by 7.84 million people in the US/
SQL: SELECT COUNT("Title") FROM "1-23242933-2" WHERE "U.S. viewers (millions)" = '7.84';

Question: When did 6.09 million people in the US see the original airing of an episode of the show?
SQL: SELECT "Original air date" FROM "1-23242933-2" WHERE "U.S. viewers (millions)" = '6.09';