Question: Who is the director of the episode at entry number 13? 
SQL: SELECT "Director" FROM "1-15026994-3" WHERE "#" = 13.0;

Question: Who wrote the episode that David Tucker directed?
SQL: SELECT COUNT("Writer") FROM "1-15026994-3" WHERE "Director" = 'David Tucker';

Question: Which episode has been viewed 6.34 million times? 
SQL: SELECT "Episode" FROM "1-15026994-3" WHERE "Viewing figure" = '6.34 million';

Question: What is the original air date of the episode directed by Paul Marcus?
SQL: SELECT "Original air date" FROM "1-15026994-3" WHERE "Director" = 'Paul Marcus';

Question: Which numerical entry corresponds to "Episode 9"?
SQL: SELECT COUNT("#") FROM "1-15026994-3" WHERE "Episode" = '"Episode 9"';