Table:
0
A
B
C
D
E
F
1
Date
Round
Pair
Ages
Dance
Song
2
October 14, 2008
1
Mitchell & Jessica
11 & 10
Cha-cha-cha
" All Star "— Smash Mouth
3
October 14, 2008
1
Kirill & Hannah
11 & 10
Samba
" I Wan'na Be Like You "— Big Bad Voodoo Daddy
4
October 21, 2008
2
Anthony & Alisa
11 & 12
Jive
" Fun, Fun, Fun "— The Beach Boys
5
October 21, 2008
2
Mitchell & Maria
12 & 13
Paso Doble
" España Cañi "—Pascual Marquina Narro
6
October 28, 2008
3
Craig & Samantha
13 & 11
Cha-cha-cha
" Play "— Jennifer Lopez
7
October 28, 2008
3
Simon & Lucy
13 & 13
Samba
" Steal My Sunshine "— Len
8
November 18, 2008
4
Kirill & Hannah
11 & 10
Cha-cha-cha
" Get Ready "— The Temptations
9
November 18, 2008
4
Mitchell & Maria
12 & 13
Samba
"Mas Que Nada"— Sérgio Mendes and Carlinhos Brown
10
November 18, 2008
4
Craig & Samantha
13 & 11
Jive
" Rockin' Robin "— Michael Jackson

Questions and formulas:
Question: How old were Mitchell & Jessica when they danced the Cha-Cha-Cha?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(E1="cha-cha-cha")*(C1="mitchell & jessica")),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,(E2:E10="cha-cha-cha")*(C2:C10="mitchell & jessica")),4))
Level: medium
Question: Who danced the Cha-Cha-Cha on November 18, 2008?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(E1="cha-cha-cha")*(A1="november 18, 2008")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,(E2:E10="cha-cha-cha")*(A2:A10="november 18, 2008")),3))
Level: medium
Question: Who danced the Samba on October 14, 2008?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(A1="october 14, 2008")*(E1="samba")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,(A2:A10="october 14, 2008")*(E2:E10="samba")),3))
Level: medium