Question: What was the 1st leg when team 1 was APOEL?
SQL: SELECT "1st leg" FROM "2-18713505-2" WHERE "Team 1" = 'APOEL';

Question: What was team 2 when team 1 was Omonia?
SQL: SELECT "Team 2" FROM "2-18713505-2" WHERE "Team 1" = 'Omonia';