Table:
0
A
B
C
D
E
1
Episode
Air Date
Team Swash
Team guest captain
Team Coxy
2
1
10 January 2010
Joe Swash
Christopher Biggins
Sara Cox
3
2
10 January 2010
Joe Swash
Stephen K Amos
Sara Cox
4
3
17 January 2010
Joe Swash
Mel Giedroyc
Sara Cox
5
4
17 January 2010
Joe Swash
John Bishop
Sara Cox
6
5
24 January 2010
Joe Swash
Joe Pasquale
Sara Cox
7
6
24 January 2010
Joe Swash
Gail Porter
Sara Cox
8
7
31 January 2010
Joe Swash
Jeff Brazier
Sara Cox
9
8
31 January 2010
Joe Swash
Michelle Collins
Sara Cox
10
9
7 February 2010
Joe Swash
Liz McClarnon
Sara Cox

Questions and formulas:
Question: What was the air date when the team guest captain was john bishop?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="John Bishop"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E10,D2:D10="John Bishop"),2))
Level: medium
Question: Who was the team guest captain for episode 2?
Formula: LET(query1,SUMMARIZE(D1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,2)=2))
Formula2: LET(query1,SUMMARIZE(D2:D10,SUMX(A2:A10)),FILTER(query1,CHOOSECOLS(query1,2)=2))
Level: hard
Question: Who was the team swash when the team guest captain was gail porter?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="Gail Porter"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E10,D2:D10="Gail Porter"),3))
Level: medium
Question: How many entries are there for team coxy for the air date of 24 january 2010 and team guest captain of gail porter?
Formula: ROWS(UNIQUE(FILTER(E1, (B1="24 January 2010")*(D1="Gail Porter"))))
Formula2: ROWS(UNIQUE(FILTER(E2:E10, (B2:B10="24 January 2010")*(D2:D10="Gail Porter"))))
Level: medium
Question: How many entries are shown for an air date when the team guest captain was stephen k amos?
Formula: ROWS(UNIQUE(FILTER(B1, D1="Stephen K Amos")))
Formula2: ROWS(UNIQUE(FILTER(B2:B10, D2:D10="Stephen K Amos")))
Level: medium