Table:
0
A
B
C
D
E
F
G
1
Episode
First Air Date
Rating (18–49)
Share (18–49)
Viewers (millions)
Rank (timeslot)
Rank (night)
2
1
January 4, 2010
3.3
8
9.50
N/A
N/A
3
2
January 11, 2010
3.6
9
10.50
N/A
N/A
4
3
January 18, 2010
3.8
9
10.66
N/A
N/A
5
4
January 25, 2010
3.9
10
11.47
N/A
N/A
6
5
February 1, 2010
4.1
10
11.73
N7A
N/A
7
6
February 8, 2010
4.1
10
12.35
N/A
N/A
8
7
February 15, 2010
4.1
10
11.53
N/A
N/A
9
8
February 22, 2010
3.9
10
11.27
N/A
N/A
10
9
March 1, 2010
5.3
14
15.15
N/A
N/A

Questions and formulas:
Question: How many records for number of viewers is listed for episode number 8? 
Formula: SUM(FILTER(E1, A1=8))
Formula2: SUM(FILTER(E2:E10, A2:A10=8))
Level: easy
Question: What was the 18 to 49 rating when 9.50 million watched?
Formula: SUM(FILTER(C1, E1=9.5))
Formula2: SUM(FILTER(C2:C10, E2:E10=9.5))
Level: easy
Question: what episode number had 11.73 million viewers? 
Formula: SUM(FILTER(A1, E1=11.73))
Formula2: SUM(FILTER(A2:A10, E2:E10=11.73))
Level: easy
Question: How many episodes had 11.47 million viewers? 
Formula: SUM(FILTER(A1, E1=11.47))
Formula2: SUM(FILTER(A2:A10, E2:E10=11.47))
Level: easy