Table:
0
A
B
C
D
E
1
State / Territory
Building
Height
Floor count
Completed
2
Queensland
Q1
323 m
78
2005
3
Victoria
Eureka Tower
297.3 m
92
2006
4
Western Australia
Central Park
249 m
52
1992
5
New South Wales
Citigroup Centre
243 m
50
2000
6
South Australia
Westpac House
132 m
31
1988
7
Northern Territory
Evolution on Gardiner
121 m
33
2008
8
Australian Capital Territory
Lovett Tower
93 m
25
1973
9
Tasmania
Wrest Point Hotel Casino
73 m
19
1973

Questions and formulas:
Question: What height has a floor count less than 25?
Formula: LET(query1,SUMMARIZE(C1,SUMX(D1)),FILTER(query1,CHOOSECOLS(query1,2)<25))
Formula2: LET(query1,SUMMARIZE(C2:C9,SUMX(D2:D9)),FILTER(query1,CHOOSECOLS(query1,2)<25))
Level: hard
Question: What state/territory has 121 m as the height?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="121 m"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,C2:C9="121 m"),1))
Level: medium
Question: What state/territory has lovett tower as the building?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="lovett tower"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,B2:B9="lovett tower"),1))
Level: medium