Table:
0
A
B
C
D
E
F
1
Rank
Artist
Album
Peak position
Sales
Certification
2
1
Lady Gaga
The Fame
1
560,000
7x Platinum
3
2
Taylor Swift
Fearless
1
480,000
6x Platinum
4
3
Kings of Leon
Only by the Night
2
320,000
4x Platinum
5
4
P!nk
Funhouse
3
250,000
2x Platinum
6
5
Beyoncé Knowles
I Am... Sasha Fierce
6
240,000
3x Platinum
7
6
Britney Spears
Circus
1
240,000
3x Platinum
8
7
Guns N' Roses
Chinese Democracy
2
240,000
3x Platinum
9
8
Metallica
Death Magnetic
1
240,000
3x Platinum
10
9
Katy Perry
One of the Boys
6
200,000
2x Platinum
11
10
Lil Wayne
Tha Carter III
1
160,000
2x Platinum

Questions and formulas:
Question: Which artist had a 4x platinum?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="4x platinum"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,F2:F11="4x platinum"),2))
Level: medium
Question: What was the highest peak position for the album one of the boys?
Formula: MAXIFS(D1,C1,"one of the boys")
Formula2: MAXIFS(D2:D11,C2:C11,"one of the boys")
Level: easy
Question: How many sales had a peak position of 1 and a certification of 6x platinum?
Formula: SUM(FILTER(E1, (D1=1)*(F1="6x platinum")))
Formula2: SUM(FILTER(E2:E11, (D2:D11=1)*(F2:F11="6x platinum")))
Level: easy
Question: What album had a peak position of 6 and a certification of 3x platinum?
Formula: LET(query1,LET(query1,FILTER(A1:F1,F1="3x platinum"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,4)))),FILTER(query1,CHOOSECOLS(query1,2)=6))
Formula2: LET(query1,LET(query1,FILTER(A2:F11,F2:F11="3x platinum"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,4)))),FILTER(query1,CHOOSECOLS(query1,2)=6))
Level: hard
Question: How many sales had a peak position more than 2 and a Certification of 3x platinum?
Formula: SUM(FILTER(E1, (D1>2)*(F1="3x platinum")))
Formula2: SUM(FILTER(E2:E11, (D2:D11>2)*(F2:F11="3x platinum")))
Level: easy