Table:
0
A
B
C
D
E
1
Date
Site
Sport
Winning team
Series
2
September 3, 2011
Ames
Volleyball
Iowa State
Iowa State 2–0
3
September 9, 2011
Iowa City
W Soccer
Iowa
Tied 2–2
4
September 10, 2011
Ames
Football
Iowa State
Iowa State 5–2
5
November 12, 2011
Dekalb
M Cross Country
Iowa State
Iowa State 7–2
6
November 12, 2011
Dekalb
W Cross Country
Iowa State
Iowa State 9–2
7
December 4, 2011
Ames
Wrestling
Iowa
Iowa State 9–4
8
December 7, 2011
Ames
W Basketball
Iowa State
Iowa State 11–4
9
December 9, 2011
Ames
W Swimming
Iowa
Iowa State 11–6
10
December 9, 2011
Ames
M Basketball
Iowa State
Iowa State 13–6
11
January 27, 2012
Ames
W Gymnastics
Iowa State
Iowa State 15–6
12
February 12, 2012
Iowa City
W Tennis
Iowa
Iowa State 15–8
13
February 17, 2012
Iowa City
W Gymnastics
Iowa
Iowa State 15–10
14
April 18, 2012
Ames
Softball
Iowa State
Iowa State 17–10
15
May 5, 2012
N/A
Academics
Iowa
Iowa State 17–11

Questions and formulas:
Question: Which date had a sport of Academics?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="academics"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E15,C2:C15="academics"),1))
Level: medium
Question: Which date had a site of N/A?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="n/a"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E15,B2:B15="n/a"),1))
Level: medium