Table:
0
A
B
C
D
E
F
G
H
1
Series #
Season #
Title
Directed by
Written by
Original air date
Production code
U.S. viewers (millions)
2
169
1
"Day 8: 4:00 p.m.– 5:00 p.m."
Brad Turner
Howard Gordon & Evan Katz
January17,2010
8AFF01
11.50
3
171
3
"Day 8: 6:00 p.m.– 7:00 p.m."
Milan Cheylov
David Fury & Alex Gansa
January18,2010
8AFF03
10.56
4
172
4
"Day 8: 7:00 p.m.– 8:00 p.m."
Milan Cheylov
Chip Johannessen & Patrick Harbinson
January18,2010
8AFF04
11.45
5
174
6
"Day 8: 9:00 p.m.– 10:00 p.m."
Brad Turner
Manny Coto & Brannon Braga
February1,2010
8AFF06
9.76
6
175
7
"Day 8: 10:00 p.m.– 11:00 p.m."
Milan Cheylov
Chip Johannessen & Patrick Harbinson
February8,2010
8AFF07
10.18
7
176
8
"Day 8: 11:00 p.m.– 12:00 a.m."
Milan Cheylov
David Fury
February15,2010
8AFF08
8.49
8
178
10
"Day 8: 1:00 a.m.– 2:00 a.m."
Brad Turner
Manny Coto & Brannon Braga
March1,2010
8AFF10
8.56
9
179
11
"Day 8: 2:00 a.m.– 3:00 a.m."
Nelson McCormick
Evan Katz & David Fury
March8,2010
8AFF11
8.91
10
180
12
"Day 8: 3:00 a.m.– 4:00 a.m."
Nelson McCormick
Chip Johannessen & Patrick Harbinson
March15,2010
8AFF12
9.03
11
182
14
"Day 8: 5:00 a.m.– 6:00 a.m."
Milan Cheylov
Story: Evan Katz Teleplay: Alex Gansa
March29,2010
8AFF14
8.31
12
183
15
"Day 8: 6:00 a.m.– 7:00 a.m."
Brad Turner
Chip Johannessen & Patrick Harbinson
April5,2010
8AFF15
6.62
13
184
16
"Day 8: 7:00 a.m.– 8:00 a.m."
Brad Turner
Manny Coto & Brannon Braga
April5,2010
8AFF16
7.90
14
185
17
"Day 8: 8:00 a.m.– 9:00 a.m."
Milan Cheylov
David Fury
April12,2010
8AFF17
8.33
15
186
18
"Day 8: 9:00 a.m.– 10:00 a.m."
Milan Cheylov
Chip Johannessen & Patrick Harbinson
April19,2010
8AFF18
8.94
16
187
19
"Day 8: 10:00 a.m.– 11:00 a.m."
Michael Klick
Manny Coto & Brannon Braga
April26,2010
8AFF19
9.19
17
188
20
"Day 8: 11:00 a.m.– 12:00 p.m."
Michael Klick
Story: Alex Gansa Teleplay: Evan Katz & Alex Gansa
May3,2010
8AFF20
9.00
18
189
21
"Day 8: 12:00 p.m.– 1:00 p.m."
Milan Cheylov
Chip Johannessen & Patrick Harbinson
May10,2010
8AFF21
8.51
19
190
22
"Day 8: 1:00 p.m.– 2:00 p.m."
Milan Cheylov
David Fury
May17,2010
8AFF22
8.98
20
191
23
"Day 8: 2:00 p.m.– 3:00 p.m."
Brad Turner
Shauna McGarry & Geoff Aull
May24,2010
8AFF23
8.39

Questions and formulas:
Question: How many original airdates did season 20 have?
Formula: ROWS(UNIQUE(FILTER(F1, B1=20)))
Formula2: ROWS(UNIQUE(FILTER(F2:F20, B2:B20=20)))
Level: medium
Question: Who directed the episode that was watched by 6.62 million U.S. viewers?
Formula: LET(query1,SUMMARIZE(D1,SUMX(H1)),FILTER(query1,CHOOSECOLS(query1,2)=6.62))
Formula2: LET(query1,SUMMARIZE(D2:D20,SUMX(H2:H20)),FILTER(query1,CHOOSECOLS(query1,2)=6.62))
Level: hard
Question: What is the production code for the episode with 8.56 million U.S. viewers?
Formula: LET(query1,SUMMARIZE(G1,SUMX(H1)),FILTER(query1,CHOOSECOLS(query1,2)=8.56))
Formula2: LET(query1,SUMMARIZE(G2:G20,SUMX(H2:H20)),FILTER(query1,CHOOSECOLS(query1,2)=8.56))
Level: hard
Question: What is the title of the episode that had 9.76 million U.S. viewers?
Formula: LET(query1,SUMMARIZE(C1,SUMX(H1)),FILTER(query1,CHOOSECOLS(query1,2)=9.76))
Formula2: LET(query1,SUMMARIZE(C2:C20,SUMX(H2:H20)),FILTER(query1,CHOOSECOLS(query1,2)=9.76))
Level: hard