Question: WHAT'S THE TIE NUMBER WITH AN AWAY TEAM OF Wrexham?
SQL: SELECT "Tie no" FROM "2-17004128-6" WHERE "Away team" = 'Wrexham';

Question: WHAT IS THE AWAY TEAM WITH HOME OF Leicester City?
SQL: SELECT "Away team" FROM "2-17004128-6" WHERE "Home team" = 'Leicester City';

Question: WHAT IS THE AWAY TEAM WHEN HOME IS Leeds United?
SQL: SELECT "Away team" FROM "2-17004128-6" WHERE "Home team" = 'Leeds United';

Question: WHAT IS THE AWAY TEAM WITH A TIE NUMBER 1?
SQL: SELECT "Away team" FROM "2-17004128-6" WHERE "Tie no" = '1';