Question: How many different writers have written the episode with series number 8?
SQL: SELECT COUNT("Written by") FROM "1-23958944-2" WHERE "No. by series" = 8.0;

Question: Who is the director of the episode titled "Hell Hath No Fury"?
SQL: SELECT "Directed by" FROM "1-23958944-2" WHERE "Title" = '"Hell Hath No Fury"';

Question: Who directed the episode titled "Ghosts"?
SQL: SELECT "Directed by" FROM "1-23958944-2" WHERE "Title" = '"Ghosts"';

Question: What's the title of the episode with production number 103?
SQL: SELECT "Title" FROM "1-23958944-2" WHERE "Production number" = 103.0;

Question: When did the episode titled "Hell Hath No Fury" air for the first time?
SQL: SELECT "Original air date" FROM "1-23958944-2" WHERE "Title" = '"Hell Hath No Fury"';