Table: tv_episode_data_20
Columns: no_in_series
no_in_season
title
directed_by
written_by
original_air_date
u_s_viewers_millions

Question: What number episode in the season was directed by Paul Adelstein? 
SQL: SELECT MAX("no_in_season") FROM tv_episode_data_20 WHERE "directed_by" = 'Paul Adelstein'

Question: What is the earliest numbered episode of the season?
SQL: SELECT MIN("no_in_season") FROM tv_episode_data_20