Table:
0
A
B
C
D
E
F
1
Name
Circuit
Date
Winning driver
Winning constructor
Report
2
Pau Grand Prix
Pau
10 April
René Dreyfus
Delahaye
Report
3
Campbell Trophy
Brooklands
18 April
Prince Bira
ERA
Report
4
Cork Grand Prix
Carrigrohane
23 April
René Dreyfus
Delahaye
Report
5
Tripoli Grand Prix
Mellaha
15 May
Hermann Lang
Mercedes-Benz
Report
6
Gávea Nacional Circuit
Gávea
29 May
Arthur Nascimento Jr
Alfa Romeo
Report
7
Grand Prix des Frontières
Chimay
5 June
Maurice Trintignant
Bugatti
Report
8
Rio de Janeiro Grand Prix
Gávea
12 June
Carlo Maria Pintacuda
Alfa Romeo
Report
9
Coppa Ciano
Montenero
7 August
Hermann Lang
Mercedes-Benz
Report
10
Coppa Acerbo
Pescara
15 August
Rudolf Caracciola
Mercedes-Benz
Report
11
Junior Car Club 200mile race
Brooklands
27 August
Johnny Wakefield
ERA
Report
12
Mountain Championship
Brooklands
15 October
Raymond Mays
ERA
Report
13
Donington Grand Prix
Donington Park
22 October
Tazio Nuvolari
Auto Union
Report

Questions and formulas:
Question: Which circuit did Raymond Mays win?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="raymond mays"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F13,D2:D13="raymond mays"),2))
Level: medium
Question: Which Circuit did Johnny Wakefield win?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="johnny wakefield"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F13,D2:D13="johnny wakefield"),2))
Level: medium