Question: On how many different dates was the episode written by Charlie Day aired for the first time?
SQL: SELECT COUNT("Original air date") FROM "1-29273115-1" WHERE "Written by" = 'Charlie Day';

Question: Who are the writers of the episode with production code IP02009?
SQL: SELECT "Written by" FROM "1-29273115-1" WHERE "Production code" = 'IP02009';

Question: Who are the writers of the episode titled "Mac Bangs Dennis' Mom"?
SQL: SELECT "Written by" FROM "1-29273115-1" WHERE "Title" = '"Mac Bangs Dennis'' Mom"';

Question: How many different titles does the episode with production code IP02003 have?
SQL: SELECT COUNT("Title") FROM "1-29273115-1" WHERE "Production code" = 'IP02003';