Table: arg_85_football_2
Columns: home_1st_leg
home_2nd_leg
1st_leg
2nd_leg
aggregate

Question: What was the 2nd leg score having an aggregate score of 4-2?
SQL: SELECT "2nd_leg" FROM arg_85_football_2 WHERE "aggregate" = '4-2'

Question: What was the home team for the 2nd leg for the match having a 1st leg score of 2-1?
SQL: SELECT "home_2nd_leg" FROM arg_85_football_2 WHERE "1st_leg" = '2-1'

Question: What was the home team for the 2nd leg of the match having an aggregate of 2-3?
SQL: SELECT "home_2nd_leg" FROM arg_85_football_2 WHERE "aggregate" = '2-3'