Table:
0
A
B
C
D
E
F
1
Episode Number
Air Date
Event 1
Event 2
Event 3
Event 4
2
1
30 March 2008
Gauntlet
Duel
Pyramid
Pendulum
3
2
6 April 2008
Hit and Run
The Wall
Sumo Ball
Pyramid
4
3
13 April 2008
Hang Tough
Atlasphere
Suspension Bridge
Vertigo
5
4
20 April 2008
Pendulum
Gauntlet
Hang Tough
Powerball
6
5
27 April 2008
Duel
Vertigo
Pyramid
Hit and Run
7
6
4 May 2008
Gauntlet
Hit and Run
Sumo Ball
The Wall
8
7
11 May 2008
Gauntlet
Duel
Pendulum
Pyramid
9
8
18 May 2008
Suspension Bridge
Powerball
Hang Tough
Atlasphere
10
9
25 May 2008
Pendulum
Whiplash
Gauntlet
The Wall
11
10
1 June 2008
Atlasphere
Vertigo
Suspension Bridge
Pyramid
12
11
8 June 2008
Gauntlet
Hang Tough
Powerball
Sumo Ball
13
12
15 June 2008
Hit and Run
The Wall
Duel
Pyramid
14
13
22 June 2008
Vertigo
Suspension Bridge
Powerball
The Wall
15
14
29 June 2008
Pendulum
Gauntlet
Duel
Whiplash

Questions and formulas:
Question: On what date was the episode aired where event 2 was Hang Tough?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="Hang Tough"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,D2:D15="Hang Tough"),2))
Level: medium
Question: When event 4 was Whiplash, what was event 2?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="Whiplash"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,F2:F15="Whiplash"),4))
Level: medium
Question: On how many different dates was event 1 Suspension Bridge?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="Suspension Bridge"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,C2:C15="Suspension Bridge"),2))
Level: medium
Question: On which episode number is event 4 The Wall and event 1 the Pendulum?
Formula: SUM(FILTER(A1, (F1="The Wall")*(C1="Pendulum")))
Formula2: SUM(FILTER(A2:A15, (F2:F15="The Wall")*(C2:C15="Pendulum")))
Level: easy
Question: What was event 2 when event 1 was Atlasphere?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="Atlasphere"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,C2:C15="Atlasphere"),4))
Level: medium