Table:
0
A
B
C
D
E
1
Week
Date
Opponent
Result
Attendance
2
1
September 6, 1981
New York Jets
W 31–0
79,754
3
2
September 13, 1981
at Baltimore Colts
W 35–3
44,950
4
3
September 17, 1981
Philadelphia Eagles
L 20–14
78,331
5
4
September 27, 1981
at Cincinnati Bengals
L 27–24
46,418
6
5
October 4, 1981
Baltimore Colts
W 23–17
77,811
7
6
October 12, 1981
Miami Dolphins
W 31–21
78,576
8
7
October 18, 1981
at New York Jets
L 33–14
54,607
9
8
October 25, 1981
Denver Broncos
W 9–7
77,757
10
9
November 1, 1981
Cleveland Browns
W 22–13
78,266
11
10
November 9, 1981
at Dallas Cowboys
L 27–14
62,583
12
11
November 15, 1981
at St. Louis Cardinals
L 24–0
46,214
13
12
November 22, 1981
New England Patrios
W 20–17
71,593
14
13
November 29, 1981
Washington Redskins
W 21–14
59,624
15
14
December 6, 1981
San Diego Chargers
W 28–27
51,488
16
15
December 13, 1981
at New England Patriots
W 19–10
42,549
17
16
December 19, 1981
at Miami Dolphins
L 16–6
72,596

Questions and formulas:
Question: What was the attendance when they played at Dallas Cowboys?
Formula: SUMIFS(E1,C1,"at dallas cowboys")
Formula2: SUMIFS(E2:E17,C2:C17,"at dallas cowboys")
Level: easy
Question: What was the attendance at the game before week 8, held on October 25, 1981?
Formula: SUM(FILTER(E1, (B1="october 25, 1981")*(A1<8)))
Formula2: SUM(FILTER(E2:E17, (B2:B17="october 25, 1981")*(A2:A17<8)))
Level: easy
Question: What was the date of the game played after week 15?
Formula: LET(query1,SUMMARIZE(B1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,2)>15))
Formula2: LET(query1,SUMMARIZE(B2:B17,SUMX(A2:A17)),FILTER(query1,CHOOSECOLS(query1,2)>15))
Level: hard