Table:
0
A
B
C
D
E
F
1
Date
Episode
Performer 1
Performer 2
Performer 3
Performer 4
2
12 July 1996
1
Stephen Frost
Greg Proops
Colin Mochrie
Ryan Stiles
3
19 July 1996
2
Greg Proops
Rory Bremner
Colin Mochrie
Ryan Stiles
4
26 July 1996
3
Josie Lawrence
Caroline Quentin
Colin Mochrie
Ryan Stiles
5
2 August 1996
4
Stephen Frost
Caroline Quentin
Colin Mochrie
Ryan Stiles
6
9 August 1996
5
Greg Proops
Niall Ashdown
Colin Mochrie
Ryan Stiles
7
16 August 1996
6
Greg Proops
Caroline Quentin
Colin Mochrie
Ryan Stiles
8
23 August 1996
7
Greg Proops
Ardal O'Hanlon
Colin Mochrie
Ryan Stiles
9
30 August 1996
8
Stephen Frost
Greg Proops
Colin Mochrie
Ryan Stiles
10
6 September 1996
9
Niall Ashdown
Stephen Frost
Colin Mochrie
Ryan Stiles
11
13 September 1996
10
Stephen Frost
Josie Lawrence
Colin Mochrie
Ryan Stiles
12
20 September 1996
11
Greg Proops
Rory Bremner
Colin Mochrie
Ryan Stiles
13
27 September 1996
12
Josie Lawrence
Caroline Quentin
Colin Mochrie
Ryan Stiles
14
6 December 1996
13
Compilation 1
Compilation 1
Compilation 1
Compilation 1
15
13 December 1996
14
Compilation 2
Compilation 2
Compilation 2
Compilation 2

Questions and formulas:
Question: Which Performer 2 has an Episode of 5?
Formula: LET(query1,SUMMARIZE(D1,SUMX(B1)),FILTER(query1,CHOOSECOLS(query1,2)=5))
Formula2: LET(query1,SUMMARIZE(D2:D15,SUMX(B2:B15)),FILTER(query1,CHOOSECOLS(query1,2)=5))
Level: hard