Table: american_idol_season_10
Columns: episode_air_date
audition_city
first_audition_date
audition_venue
callback_audition_date
callback_venue
golden_tickets

Question: Where were the auditions held in the episode that aired on january 27, 2011?
SQL: SELECT "audition_city" FROM american_idol_season_10 WHERE "episode_air_date" = 'January 27, 2011'

Question: In how many different audition cities were the Bridgestone arena auditions held?
SQL: SELECT COUNT("audition_city") FROM american_idol_season_10 WHERE "audition_venue" = 'Bridgestone Arena'

Question: When was the callback audition date for the audition city from the episode aired on February 2, 2011?
SQL: SELECT "callback_audition_date" FROM american_idol_season_10 WHERE "episode_air_date" = 'February 2, 2011'

Question: When were the callback auditions at Hilton Riverside Hotel held?
SQL: SELECT "callback_audition_date" FROM american_idol_season_10 WHERE "callback_venue" = 'Hilton Riverside Hotel'

Question: What was the callback venue for the audition city in the episode aired on January 20, 2011?
SQL: SELECT "callback_venue" FROM american_idol_season_10 WHERE "episode_air_date" = 'January 20, 2011'

Question: When were the callback auditions for the audition city in the episode aired on February 9, 2011?
SQL: SELECT "callback_audition_date" FROM american_idol_season_10 WHERE "episode_air_date" = 'February 9, 2011'