Table: fa_cup_matches_80
Columns: tie_no
home_team
score
away_team
date

Question: When was Southend United the home team?
SQL: SELECT "date" FROM fa_cup_matches_80 WHERE "home_team" = 'southend united'

Question: For the game on 13 December 1975 with Halifax Town as the away team what was the score?
SQL: SELECT "score" FROM fa_cup_matches_80 WHERE "date" = '13 december 1975' AND "away_team" = 'halifax town'

Question: Who was the away team when 6 was the tie no?
SQL: SELECT "away_team" FROM fa_cup_matches_80 WHERE "tie_no" = '6'

Question: The game with 13 as the tie no had what as the score?
SQL: SELECT "score" FROM fa_cup_matches_80 WHERE "tie_no" = '13'