Table: episodes_table_59
Columns: no_in_series
no_in_season
title
directed_by
written_by
original_air_date
production_code

Question: How many dates did the episode with a production code of 804 originally air on?
SQL: SELECT COUNT("original_air_date") FROM episodes_table_59 WHERE "production_code" = 804

Question: What is the original air date for "killer queen"?
SQL: SELECT "original_air_date" FROM episodes_table_59 WHERE "title" = '"Killer Queen"'

Question: Who directed episode 2 of the season?
SQL: SELECT "directed_by" FROM episodes_table_59 WHERE "no_in_season" = 2

Question: Who wrote "bohemian rhapsody"?
SQL: SELECT "written_by" FROM episodes_table_59 WHERE "title" = '"Bohemian Rhapsody"'

Question: What dat did episode 195 in the series originally air?
SQL: SELECT "original_air_date" FROM episodes_table_59 WHERE "no_in_series" = 195