Question: What is the average rating of viewers 18 to 49 where the total viewer count is 3.93 million and share less than 4?
SQL: SELECT AVG("18–49") FROM "2-11251109-4" WHERE "Viewers (m)" = 3.93 AND "Share" < 4.0;

Question: What is the total number of ratings among the 18 to 49 group that was aired on january 7, 2009?
SQL: SELECT COUNT("18–49") FROM "2-11251109-4" WHERE "Air Date" = 'january 7, 2009';

Question: What is the total number of viewers for the show that was aired on december 10, 2008 with an 18 to 49 rating less than 1.2?
SQL: SELECT COUNT("Viewers (m)") FROM "2-11251109-4" WHERE "Air Date" = 'december 10, 2008' AND "18–49" < 1.2;