Table: episodes_table_12
Columns: no_in_series
title
directed_by
written_by
original_u_s_air_date
prod_code

Question: Who wrote the episode titled "big kings on campus"?
SQL: SELECT "written_by" FROM episodes_table_12 WHERE "title" = '"Big Kings on Campus"'

Question: How many episodes have the title "revenge of the mummy"?
SQL: SELECT COUNT("original_u_s_air_date") FROM episodes_table_12 WHERE "title" = '"Revenge of the Mummy"'