Table:
0
A
B
C
D
E
F
1
Tournament
Country
Location
Current Venue
Began
Court surface
2
Indian Wells Masters
United States
Indian Wells
Indian Wells Tennis Garden
1987
Hard
3
Miami Masters
United States
Miami
Tennis Center at Crandon Park
1987
Hard
4
Monte Carlo Masters
Monaco
Roquebrune-Cap-Martin , France
Monte Carlo Country Club
1897
Clay
5
Rome Masters
Italy
Rome
Foro Italico
1930
Clay
6
Madrid Masters
Spain
Madrid
Park Manzanares
2002
Clay
7
Canada Masters
Canada
Montreal / Toronto
Stade Uniprix / Rexall Centre
1881
Hard
8
Cincinnati Masters
United States
Mason, Ohio
Lindner Family Tennis Center
1899
Hard
9
Shanghai Masters
China
Shanghai
Qi Zhong Stadium
2009
Hard
10
Paris Masters
France
Paris
Palais Omnisports de Paris-Bercy
1968
Hard (i)

Questions and formulas:
Question: What was the surface played on for the match than began before 1897?
Formula: LET(query1,SUMMARIZE(F1,SUMX(E1)),FILTER(query1,CHOOSECOLS(query1,2)<1897))
Formula2: LET(query1,SUMMARIZE(F2:F10,SUMX(E2:E10)),FILTER(query1,CHOOSECOLS(query1,2)<1897))
Level: hard
Question: For the Indian Wells Masters tournament, what was the country?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="indian wells masters"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,A2:A10="indian wells masters"),2))
Level: medium
Question: Which location was in China, and played on a hard court?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(F1="hard")*(B1="china")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,(F2:F10="hard")*(B2:B10="china")),3))
Level: medium
Question: What country was the Paris Masters tournament played in?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="paris masters"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,A2:A10="paris masters"),2))
Level: medium