Table:
0
A
B
C
D
E
1
Home (1st leg)
Home (2nd leg)
1st Leg
2nd leg
Aggregate
2
Guaraní
Platense
0-0
0-1
0-1
3
Huracán
Racing de Córdoba
2-1
1-1
3-2
4
Belgrano
Huracán La Heras
2-1
1-3
3-4
5
Central Norte
Círculo Deportivo
0-0
2-3
2-3
6
Altos Hornos Zapla
Argentino (F)
2-0
1-2
3-2
7
Juventud Alianza
Temperley
4-3
1-4
5-7
8
Cipolletti
Instituto
0-0
1-3
1-3

Questions and formulas:
Question: When 0-1 is the aggregate what are the  home (1st leg)?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="0-1"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,E2:E8="0-1"),1))
Level: medium
Question: When 2-0 is the 1st leg what are the home (2nd leg)?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="2-0"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,C2:C8="2-0"),2))
Level: medium
Question: When belgrano is the home (1st leg) what is the  home (2nd leg)?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="Belgrano"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,A2:A8="Belgrano"),2))
Level: medium
Question: When platense is the home (2nd leg) what is the 2nd leg?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="Platense"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,B2:B8="Platense"),4))
Level: medium
Question: When altos hornos zapla is the  home (1st leg) what is overall amount of 1st leg?
Formula: ROWS(UNIQUE(FILTER(C1, A1="Altos Hornos Zapla")))
Formula2: ROWS(UNIQUE(FILTER(C2:C8, A2:A8="Altos Hornos Zapla")))
Level: medium
Question: When temperley is the home (2nd leg) what is the home (1st leg)?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="Temperley"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,B2:B8="Temperley"),1))
Level: medium