Question: Which Visiting Team is on December 23?
SQL: SELECT "Visiting Team" FROM "2-13193466-15" WHERE "Date" = 'December 23';

Question: Which Host Team has Final Score of 42-23?
SQL: SELECT "Host Team" FROM "2-13193466-15" WHERE "Final Score" = '42-23';

Question: When did Final Score of 31-7 happen?
SQL: SELECT "Date" FROM "2-13193466-15" WHERE "Final Score" = '31-7';