Table: acc_bigt_ten_challenge
Columns: date
time
acc_team
big_ten_team
location
television
attendance
winner
challenge_leader

Question: Who is the challenge leader that played on 9:30 pm on Wed., Nov. 28?
SQL: SELECT "challenge_leader" FROM acc_bigt_ten_challenge WHERE "time" = '9:30 pm' AND "date" = 'wed., nov. 28'

Question: What is the location of the game that was televised on ESPNU at 7:15 pm on Tue., Nov. 27?
SQL: SELECT "location" FROM acc_bigt_ten_challenge WHERE "television" = 'espnu' AND "time" = '7:15 pm' AND "date" = 'tue., nov. 27'