Table:
0
A
B
C
D
E
F
G
H
1
Week
Date
Opponent
Location
Time ( ET )
TV
Result
Record
2
1
Sun. Sep. 10
Cleveland Browns
Three Rivers Stadium
4:00pm
NBC
L 51–0
0–1
3
2
Sun. Sep. 17
at Cincinnati Bengals
Riverfront Stadium
1:00pm
NBC
L 41–10
0–2
4
3
Sun. Sep. 24
Minnesota Vikings
Three Rivers Stadium
1:00pm
CBS
W 27–14
1–2
5
4
Sun. Oct. 1
at Detroit Lions
Pontiac Silverdome
1:00pm
NBC
W 23–3
2–2
6
5
Sun. Oct. 8
Cincinnati Bengals
Three Rivers Stadium
1:00pm
NBC
L 26–16
2–3
7
6
Sun. Oct. 15
at Cleveland Browns
Cleveland Municipal Stadium
4:00pm
NBC
W 17–7
3–3
8
7
Sun. Oct. 22
at Houston Oilers
Astrodome
1:00pm
NBC
L 27–0
3–4
9
8
Sun. Oct. 29
Kansas City Chiefs
Three Rivers Stadium
1:00pm
NBC
W 23–17
4–4
10
9
Sun. Nov. 5
at Denver Broncos
Mile High Stadium
4:00pm
NBC
L 34–7
4–5
11
10
Sun. Nov. 12
Chicago Bears
Three Rivers Stadium
1:00pm
CBS
L 20–0
4–6
12
11
Sun. Nov. 19
San Diego Chargers
Three Rivers Stadium
1:00pm
NBC
W 20–17
5–6
13
12
Sun. Nov. 26
at Miami Dolphins
Joe Robbie Stadium
1:00pm
NBC
W 34–14
6–6
14
13
Sun. Dec. 3
Houston Oilers
Three Rivers Stadium
1:00pm
NBC
L 23–16
6–7
15
14
Sun. Dec. 10
at New York Jets
Giants Stadium
1:00pm
NBC
W 13–0
7–7
16
15
Sun. Dec. 17
New England Patriots
Three Rivers Stadium
1:00pm
NBC
W 28–10
8–7

Questions and formulas:
Question: Who was the opposing team played at Riverfront Stadium?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,D1="Riverfront Stadium"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H16,D2:D16="Riverfront Stadium"),3))
Level: medium
Question: How many days were the Kansas City Chiefs the opposing team?
Formula: ROWS(UNIQUE(FILTER(B1, C1="Kansas City Chiefs")))
Formula2: ROWS(UNIQUE(FILTER(B2:B16, C2:C16="Kansas City Chiefs")))
Level: medium