Table:
0
A
B
C
D
E
1
Circuit
City / State
Date
Winner
Team
2
Mallala Motor Sport Park
Mallala , South Australia
7 May
Mark McLaughlin
Elfin Sports Cars
3
Mallala Motor Sport Park
Mallala , South Australia
7 May
Rohan Onslow
R.J.Macarthur Onslow
4
Winton Motor Raceway
Benalla , Victoria
4 June
Rohan Onslow
R.J.Macarthur Onslow
5
Winton Motor Raceway
Benalla , Victoria
4 June
John Briggs
John Briggs
6
Oran Park Raceway
Sydney , New South Wales
4 August
Rohan Onslow
R.J.Macarthur Onslow
7
Oran Park Raceway
Sydney , New South Wales
4 August
Rohan Onslow
R.J.Macarthur Onslow
8
Amaroo Park
Sydney , New South Wales
20 August
Neil Crompton
Boylan Racing
9
Amaroo Park
Sydney , New South Wales
20 August
Simon Kane
Clive Kane Photography
10
Sandown International Raceway
Melbourne , Victoria
9 October
Sam Astuti
Cascone Corporation
11
Sandown International Raceway
Melbourne , Victoria
9 October
Neil Crompton
Boylan Racing

Questions and formulas:
Question: What is City / State, when Winner is "Rohan Onslow", and when Circuit is "Oran Park Raceway"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(D1="rohan onslow")*(A1="oran park raceway")),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(D2:D11="rohan onslow")*(A2:A11="oran park raceway")),2))
Level: medium
Question: What is Winner, when City / State is "Mallala , South Australia", and when Team is "Elfin Sports Cars"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(B1="mallala , south australia")*(E1="elfin sports cars")),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(B2:B11="mallala , south australia")*(E2:E11="elfin sports cars")),4))
Level: medium
Question: What is Circuit, when Team is "R.J.MacArthur Onslow", and when City / State is "Sydney , New South Wales"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="r.j.macarthur onslow")*(B1="sydney , new south wales")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(E2:E11="r.j.macarthur onslow")*(B2:B11="sydney , new south wales")),1))
Level: medium
Question: What is Winner, when Team is "R.J.MacArthur Onslow", and when Circuit is "Oran Park Raceway"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="r.j.macarthur onslow")*(A1="oran park raceway")),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(E2:E11="r.j.macarthur onslow")*(A2:A11="oran park raceway")),4))
Level: medium
Question: What is Date, when City / State is "Mallala , South Australia", and when Team is "R.J.MacArthur Onslow"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(B1="mallala , south australia")*(E1="r.j.macarthur onslow")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(B2:B11="mallala , south australia")*(E2:E11="r.j.macarthur onslow")),3))
Level: medium
Question: What is Winner, when Date is "20 August"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="20 august"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,C2:C11="20 august"),4))
Level: medium