Table:
0
A
B
C
D
E
F
G
H
1
N°
Television service
Country
Language
Content
DAR
HDTV
Package/Option
2
861
Telemarket
Italy
Italian
televendita
4:3
no
no ( FTA )
3
862
Noello Sat
Italy
Italian
televendita
4:3
no
no ( FTA )
4
863
Elite Shopping TV
Italy
Italian
televendita
4:3
no
no ( FTA )
5
864
Juwelo
Italy
Italian
televendita
4:3
no
no ( FTA )
6
865
Diprè TV
Italy
Italian
arte
4:3
no
no ( FTA )
7
866
Telemarket For You
Italy
Italian
televendita
4:3
no
no ( FTA )
8
867
La Sorgente Sat 1
Italy
Italian
televendita
4:3
no
no ( FTA )
9
868
La Sorgente Sat 2
Italy
Italian
televendita
4:3
no
no ( FTA )
10
869
La Sorgente Sat 3
Italy
Italian
televendita
4:3
no
no ( FTA )

Questions and formulas:
Question: How many values of HDTV apply when television service is elite shopping tv?
Formula: ROWS(UNIQUE(FILTER(G1, B1="Elite Shopping TV")))
Formula2: ROWS(UNIQUE(FILTER(G2:G10, B2:B10="Elite Shopping TV")))
Level: medium
Question: How many countries have content of arte?
Formula: ROWS(UNIQUE(FILTER(C1, E1="arte")))
Formula2: ROWS(UNIQUE(FILTER(C2:C10, E2:E10="arte")))
Level: medium
Question: How many values of HDTV correspond to television service of la sorgente sat 1?
Formula: ROWS(UNIQUE(FILTER(G1, B1="La Sorgente Sat 1")))
Formula2: ROWS(UNIQUE(FILTER(G2:G10, B2:B10="La Sorgente Sat 1")))
Level: medium
Question: What values of HDTV correspond to  n° of 862?
Formula: LET(query1,SUMMARIZE(G1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,2)=862))
Formula2: LET(query1,SUMMARIZE(G2:G10,SUMX(A2:A10)),FILTER(query1,CHOOSECOLS(query1,2)=862))
Level: hard