Table:
0
A
B
C
D
E
1
Rank
Song title
Composer(s)
Performer(s)
Year
2
1
" All I Want for Christmas Is You "
Mariah Carey and Walter Afanasieff
Mariah Carey
1994
3
2
" Last Christmas "
George Michael
Wham!
1984
4
3
" Fairytale of New York "
Jem Finer and Shane MacGowan
The Pogues with Kirsty MacColl
1987
5
4
" Do They Know It’s Christmas? "
Bob Geldof and Midge Ure
Band Aid
1984
6
5
" Merry Xmas Everybody "
Noddy Holder and Jim Lea
Slade
1973
7
6
" White Christmas "
Irving Berlin
Louis Armstrong
1940
8
7
" Driving Home for Christmas "
Chris Rea
Chris Rea
1988
9
8
" Merry Christmas Everyone "
Bob Heatlie
Shakin' Stevens
1985
10
9
" Mistletoe and Wine "
Jeremy Paul, Leslie Stewart and Keith Strachan
Cliff Richard
1976
11
10
" Walking in the Air "
Howard Blake
Peter Auty
1982

Questions and formulas:
Question: Who sang the song composed by Mariah Carey and Walter Afanasieff?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="mariah carey and walter afanasieff"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,C2:C11="mariah carey and walter afanasieff"),4))
Level: medium
Question: How many years was Louis Armstrong performing?
Formula: ROWS(UNIQUE(FILTER(E1, D1="louis armstrong")))
Formula2: ROWS(UNIQUE(FILTER(E2:E11, D2:D11="louis armstrong")))
Level: medium