Table:
0
A
B
C
D
E
F
1
Player
Country
Year(s) won
Total
To par
Finish
2
Phil Mickelson
United States
2004 , 2006
279
–9
5
3
Tiger Woods
United States
1997 , 2001 , 2002 , 2005
280
–8
T6
4
Trevor Immelman
South Africa
2008
286
–2
T20
5
Sandy Lyle
Scotland
1988
286
–2
T20
6
Larry Mize
United States
1987
287
–1
T30
7
Vijay Singh
Fiji
2000
287
–1
T30
8
Mike Weir
Canada
2003
294
+6
T46

Questions and formulas:
Question: Who won in 1988 with a total less than 287?
Formula: LET(query1,LET(query1,FILTER(A1:F1,C1=1988),SUMMARIZE(CHOOSECOLS(query1,1),SUMX(CHOOSECOLS(query1,4)))),FILTER(query1,CHOOSECOLS(query1,2)<287))
Formula2: LET(query1,LET(query1,FILTER(A2:F8,C2:C8=1988),SUMMARIZE(CHOOSECOLS(query1,1),SUMX(CHOOSECOLS(query1,4)))),FILTER(query1,CHOOSECOLS(query1,2)<287))
Level: hard
Question: What country is Larry Mize from?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="larry mize"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,A2:A8="larry mize"),2))
Level: medium