Table: tv_schedule_2
Columns: 8_00
8_30
9_00
9_30
10_00

Question: What is airing at 9:00 on the channel that airs House at 8:00?
SQL: SELECT "9_00" FROM tv_schedule_2 WHERE "8_00" = 'house'

Question: What is airing at 9:30 on the channel that airs 24 at 9:00?
SQL: SELECT "9_30" FROM tv_schedule_2 WHERE "9_00" = '24'

Question: What is airing at 9:00 on the channel that airs Chuck at 8:30 and Medium at 10:00?
SQL: SELECT "9_00" FROM tv_schedule_2 WHERE "10_00" = 'medium' AND "8_30" = 'chuck'

Question: What is airing at 10:00 on the channel that airs Medium at 9:00?
SQL: SELECT "10_00" FROM tv_schedule_2 WHERE "9_00" = 'medium'

Question: What is airing at 9:30 on the channel that airs Heroes at 9:00?
SQL: SELECT "9_30" FROM tv_schedule_2 WHERE "9_00" = 'heroes'

Question: What is airing at 8:00 on the channel that airs Castle at 10:00?
SQL: SELECT "8_00" FROM tv_schedule_2 WHERE "10_00" = 'castle'