Table: episode_series
Columns: episode_no_episode_no_refers_to_the_episodes_number_in_the_overall_series_whereas_series_no_refers_to_the_episodes_number_in_this_particular_series
series_no
episode
director
writer
original_airdate

Question: Name the episod for number 64
SQL: SELECT "episode" FROM episode_series WHERE "episode_no_episode_no_refers_to_the_episodes_number_in_the_overall_series_whereas_series_no_refers_to_the_episodes_number_in_this_particular_series" = 64

Question: Name the number of episodes for sam snape
SQL: SELECT COUNT("episode") FROM episode_series WHERE "writer" = 'Sam Snape'