Table:
0
A
B
C
D
E
1
Year started
Number of cars
Current car
Car #
Website
2
1998
7
B-7
77
English
3
1992
7
Éclipse 7
92
French English
4
1998
6
Esteban VI
55
French English
5
1992
3
iSun
66
French English
6
1997
4
Phoenix II
116
English
7
1990
10
Midnight Sun X
24
English
8
2008
1
Arctic Sun
None
English
9
1988
11
Aurum
100
English
10
1991
6
SunStang
96
English
11
2008
1
Raven
None
English
12
2004
4
Schulich Delta
65
English
13
1989
2
RALOS II
125
English
14
1999
1
Xof1
125
English french

Questions and formulas:
Question: Which website was started in 2008?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1=2008),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E14,A2:A14=2008),5))
Level: medium
Question: Which Year started is the highest one that has a Current car of arctic sun, and a Number of cars smaller than 1?
Formula: LET(query1,LET(query1,FILTER(A1:E1,C1="arctic sun"),SUMMARIZE(CHOOSECOLS(query1,1),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)<1))
Formula2: LET(query1,LET(query1,FILTER(A2:E14,C2:C14="arctic sun"),SUMMARIZE(CHOOSECOLS(query1,1),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)<1))
Level: hard
Question: Which Current car has a Number of cars of 1, and a Year started of 1999?
Formula: LET(query1,LET(query1,FILTER(A1:E1,A1=1999),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)=1))
Formula2: LET(query1,LET(query1,FILTER(A2:E14,A2:A14=1999),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)=1))
Level: hard
Question: Which Year started is the lowest one that has a Number of cars larger than 7, and a Car # of 100?
Formula: LET(query1,LET(query1,FILTER(A1:E1,D1=100),SUMMARIZE(CHOOSECOLS(query1,1),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)>7))
Formula2: LET(query1,LET(query1,FILTER(A2:E14,D2:D14=100),SUMMARIZE(CHOOSECOLS(query1,1),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)>7))
Level: hard