Table: episodes_table_16
Columns: no_in_series
no_in_season
title
directed_by
written_by
original_air_date
production_code

Question: What was the name of eipsode 618?
SQL: SELECT "title" FROM episodes_table_16 WHERE "production_code" = 618

Question: When did "secrets" air?
SQL: SELECT "original_air_date" FROM episodes_table_16 WHERE "title" = '"Secrets"'

Question: How many seasons did "strangled, not stirred" air?
SQL: SELECT COUNT("no_in_season") FROM episodes_table_16 WHERE "title" = '"Strangled, Not Stirred"'

Question: How many episodes did Alison Maclean direct?
SQL: SELECT COUNT("written_by") FROM episodes_table_16 WHERE "directed_by" = 'Alison Maclean'