Table:
0
A
B
C
D
E
1
Year
Song
Artist
Place
Points
2
2003
" Više nisam tvoja "
Claudia Beni
15
29
3
2005
" Call Me "
Feminnem
14
79
4
2007
" Cvet z juga "
Alenka Gotar
15 (SF: 7th)
66 (SF: 140)
5
2008
" Senhora do mar (Negras águas) "*
Vânia Fernandes
13 (SF: 2nd)
69 (SF: 120)
6
2009
" Love Symphony "†
Quartissimo feat. Martina Majerle
SF: 16
14
7
2012
" Vida minha "*
Filipa Sousa
SF: 13
39

Questions and formulas:
Question: How many years have claudia beni as the artist?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="claudia beni"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,C2:C7="claudia beni"),1))
Level: medium
Question: What song has filipa sousa as an artist?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="filipa sousa"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,C2:C7="filipa sousa"),2))
Level: medium