Table:
0
A
B
C
D
E
1
Week
Date
Opponent
Result
Attendance
2
1
September 4, 1988
at Indianapolis Colts
W 17–14
57,251
3
2
September 11, 1988
Los Angeles Raiders
W 38–35
46,050
4
3
September 18, 1988
at New York Jets
L 45–3
64,683
5
4
September 25, 1988
New England Patriots
W 31–6
38,646
6
5
October 2, 1988
at Philadelphia Eagles
L 32–23
64,692
7
6
October 9, 1988
Kansas City Chiefs
W 7–6
39,134
8
7
October 16, 1988
at Pittsburgh Steelers
W 34–14
52,229
9
8
October 23, 1988
at Cincinnati Bengals
L 44–21
54,659
10
9
October 30, 1988
Washington Redskins
W 41–17
48,781
11
10
November 7, 1988
Cleveland Browns
W 24–17
51,467
12
11
November 13, 1988
at Seattle Seahawks
L 27–24
60,446
13
12
November 20, 1988
Phoenix Cardinals
W 38–20
43,843
14
13
November 24, 1988
at Dallas Cowboys
W 25–17
50,845
15
14
December 4, 1988
Pittsburgh Steelers
L 37–34
47,791
16
15
December 11, 1988
Cincinnati Bengals
W 41–6
50,269
17
16
December 18, 1988
at Cleveland Browns
L 28–23
74,610

Questions and formulas:
Question: What is Opponent, when Date is December 18, 1988?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="december 18, 1988"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E17,B2:B17="december 18, 1988"),3))
Level: medium
Question: What is Attendance, when Opponent is Pittsburgh Steelers?
Formula: SUMIFS(E1,C1,"pittsburgh steelers")
Formula2: SUMIFS(E2:E17,C2:C17,"pittsburgh steelers")
Level: easy
Question: What is the average Week, when Result is l 37–34?
Formula: AVERAGEIFS(A1,D1,"l 37–34")
Formula2: AVERAGEIFS(A2:A17,D2:D17,"l 37–34")
Level: easy