Table:
0
A
B
C
D
E
1
Week
Date
Opponent
Result
Attendance
2
1
September 2, 1979
at New Orleans Saints
W 40-34
70,940
3
2
September 10, 1979
at Philadelphia Eagles
W 14-10
66,935
4
3
September 16, 1979
Denver Broncos
L 20-17
57,677
5
4
September 23, 1979
at Detroit Lions
L 24-23
56,249
6
5
September 30, 1979
Washington Redskins
L 16-7
56,819
7
6
October 7, 1979
Green Bay Packers
W 25-7
56,184
8
7
October 14, 1979
at Oakland Raiders
L 50-19
52,900
9
8
October 21, 1979
at San Francisco 49ers
L 20-15
33,952
10
9
October 29, 1979
Seattle Seahawks
L 31-28
52,566
11
10
November 4, 1979
Tampa Bay Buccaneers
W 17-14
55,150
12
11
November 11, 1979
at New York Giants
L 24-3
60,860
13
12
November 19, 1979
at Los Angeles Rams
L 20-14
54,097
14
13
November 25, 1979
New Orleans Saints
L 37-6
42,815
15
14
December 2, 1979
at San Diego Chargers
W 28-26
50,198
16
15
December 9, 1979
Los Angeles Rams
L 34-13
49,236
17
16
December 16, 1979
San Francisco 49ers
W 31-21
37,211

Questions and formulas:
Question: What is the week with w 31-21 result?
Formula: SUMIFS(A1,D1,"w 31-21")
Formula2: SUMIFS(A2:A17,D2:D17,"w 31-21")
Level: easy
Question: In week 7, what was the average attendance?
Formula: AVERAGE(FILTER(E1, A1=7))
Formula2: AVERAGE(FILTER(E2:E17, A2:A17=7))
Level: easy
Question: Who was the opponent on september 10, 1979?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="september 10, 1979"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E17,B2:B17="september 10, 1979"),3))
Level: medium