Table: rail_journeys_2
Columns: episode_no
episode_title
uk_broadcast_date
presenter
details_of_journey
countries_visited

Question: Which episode number visited India?
SQL: SELECT "episode_no" FROM rail_journeys_2 WHERE "countries_visited" = 'india'

Question: Which episode title featured a visit to the country of Cuba?
SQL: SELECT "episode_title" FROM rail_journeys_2 WHERE "countries_visited" = 'cuba'