Table:
0
A
B
C
D
E
F
1
Episode #
Production Count
Original Airdate
Prod. Code
Title
Viewing Figures Millions
2
1
7
22 December 2000
IPEA340E
"Christmas"
N/A
3
2
8
14 May 2001
IPEA341Y
"Parents"
8.63
4
3
9
21 May 2001
IPEA344F
"Girlfriend"
7.60
5
4
10
28 May 2001
IPEA343L
"Car"
7.59
6
5
11
4 June 2001
IPEA345A
"Nemesis"
7.73
7
6
12
11 June 2001
IPEA342S
"Pregnant"
8.54

Questions and formulas:
Question: How many episodes were numbered 5?
Formula: SUM(FILTER(B1, A1=5))
Formula2: SUM(FILTER(B2:B7, A2:A7=5))
Level: easy
Question: What are the original air date(s) for episodes with production code ipea343l?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="IPEA343L"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,D2:D7="IPEA343L"),3))
Level: medium
Question: What are the original air date(s) for episodes with production code ipea345a?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="IPEA345A"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,D2:D7="IPEA345A"),3))
Level: medium
Question: What are the original air date(s) for episodes with 8.63 million viewers?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1=8.63),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,F2:F7=8.63),3))
Level: medium