Table:
0
A
B
C
D
E
1
Episode
Director
Writer
Original air date
Ratings (millions)
2
"Episode 1"
Paul Gay
Peter Bowker
21July2009
2.61
3
"Episode 2"
Paul Gay
Peter Bowker
28July2009
2.13
4
"Episode 3"
Paul Gay
Peter Bowker
4August2009
2.15
5
"Episode 4"
Diarmuid Lawrence
Peter Bowker
11August2009
1.92
6
"Episode 5"
Diarmuid Lawrence
Peter Bowker
18August2009
1.96

Questions and formulas:
Question: What is the original air date if the ratings is 1.92 million?
Formula: LET(query1,SUMMARIZE(D1,SUMX(E1)),FILTER(query1,CHOOSECOLS(query1,2)=1.92))
Formula2: LET(query1,SUMMARIZE(D2:D6,SUMX(E2:E6)),FILTER(query1,CHOOSECOLS(query1,2)=1.92))
Level: hard
Question: What is the name of the writer when the ratings was 2.61 million?
Formula: LET(query1,SUMMARIZE(C1,SUMX(E1)),FILTER(query1,CHOOSECOLS(query1,2)=2.61))
Formula2: LET(query1,SUMMARIZE(C2:C6,SUMX(E2:E6)),FILTER(query1,CHOOSECOLS(query1,2)=2.61))
Level: hard