Table:
0
A
B
C
D
E
F
1
Year
Class
Team
Chassis
Tyre
Laps
2
1992
C1
Mazdaspeed Co. Ltd. Oreca
Mazda MXR-01
M
336
3
1991
C2
Mazdaspeed Co. Ltd.
Mazda 787B
D
362
4
1990
GTP
Mazdaspeed Co. Ltd.
Mazda 787
D
148
5
1989
GTP
Mazdaspeed Co. Ltd.
Mazda 767
D
339
6
1987
C1
Porsche Kremer Racing
Porsche 962 C
Y
6

Questions and formulas:
Question: What's the total of Year that's got a Team of Porsche Kremer Racing?
Formula: SUMIFS(A1,C1,"porsche kremer racing")
Formula2: SUMIFS(A2:A6,C2:C6,"porsche kremer racing")
Level: easy
Question: Which Class has a Chassis of Mazda 787B?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="mazda 787b"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,D2:D6="mazda 787b"),2))
Level: medium
Question: What Year has a Tyre of D, and Chassis of Mazda 787?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(E1="d")*(D1="mazda 787")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,(E2:E6="d")*(D2:D6="mazda 787")),1))
Level: medium
Question: What is the total number of Laps that's got a Year less than 1987?
Formula: SUM(FILTER(F1, A1<1987))
Formula2: SUM(FILTER(F2:F6, A2:A6<1987))
Level: easy