Table:
0
A
B
C
D
E
F
1
Artist
Country
Number-one single(s)
Year
Weeks at #1
Straight to #1 ?
2
D'Avilla, Philippe
France
" Les Rois du monde "
2000
17
No
3
Daft Punk
France
" One More Time "
2000
1
Yes
4
Début de Soirée
France
" Nuit de folie "
1988
9
No
5
Desvarieux, Jacob
France
" Laisse parler les gens " 1
2003
3
No
6
Diam's
Cyprus
" La Boulette "
2006
3
No
7
Dion, Céline
Canada
" Pour que tu m'aimes encore "
1995
12
No
8
Dion, Céline
Canada
" Je sais pas "
1995
7
No
9
Dion, Céline
Canada
" The Reason " / " My Heart Will Go On "
1998
13
No
10
Dion, Céline
Canada
" Sous le vent "
2001
3
Yes
11
Dire Straits
United Kingdom
" Your Latest Trick "
1993
6
Yes
12
DJ BoBo
Switzerland
" Chihuahua "
2003
10
No
13
Doré, Julien
Canada
"Pour un infidèle"
2010
1
Yes

Questions and formulas:
Question: Name the number one singles for  desvarieux, jacob
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="Desvarieux, Jacob"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F13,A2:A13="Desvarieux, Jacob"),3))
Level: medium
Question: Name the least weeks at number 1 for 1988
Formula: MIN(FILTER(E1, D1=1988))
Formula2: MIN(FILTER(E2:E13, D2:D13=1988))
Level: easy