Table:
0
A
B
C
D
E
1
Dance
Best dancer(s)
Best score
Worst dancer(s)
Worst score
2
Cha Cha Cha
Alesha Dixon
39
Gethin Jones/Kenny Logan
22
3
Jive
Gethin Jones
37
Dominic Littlewood/Penny Lancaster
25
4
Rumba
Kelly Brook/Matt Di Angelo
33
Letitia Dean/Kenny Logan
23
5
Paso doble
Alesha Dixon
36
Kenny Logan/Kate Garraway
21
6
Samba
Alesha Dixon
36
Kate Garraway
16
7
Waltz
Matt Di Angelo
40
Brian Capron
18
8
Quickstep
Alesha Dixon
38
Kate Garraway
15
9
Foxtrot
Alesha Dixon
36
John Barnes
24
10
Tango
Alesha Dixon
38
Kate Garraway
19
11
Viennese Waltz
Alesha Dixon
38
Kenny Logan
26
12
American Smooth
Gethin Jones
38
John Barnes
22
13
Salsa
Matt Di Angelo
39
Kate Garraway
18
14
Argentine Tango
Alesha Dixon
38
Matt Di Angelo
35

Questions and formulas:
Question: What's the worst score for the worst dancer(s) john barnes, with a best score of 36?
Formula: SUM(FILTER(E1, (C1=36)*(D1="john barnes")))
Formula2: SUM(FILTER(E2:E14, (C2:C14=36)*(D2:D14="john barnes")))
Level: easy
Question: What's the worst dance of jive dancer(s)?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="jive"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E14,A2:A14="jive"),4))
Level: medium
Question: What's the best score, with the worst dancer(s) gethin jones/kenny logan?
Formula: SUMIFS(C1,D1,"gethin jones/kenny logan")
Formula2: SUMIFS(C2:C14,D2:D14,"gethin jones/kenny logan")
Level: easy
Question: What's the best average score with a bad score of 15?
Formula: AVERAGE(FILTER(C1, E1=15))
Formula2: AVERAGE(FILTER(C2:C14, E2:E14=15))
Level: easy