Table:
0
A
B
C
D
E
F
1
Name
Position
Number
School/Club Team
Season
Acquisition via
2
Allan Salangsang
Forward
24
Letran
2006-2007
Free Agency
3
Jondan Salvador
Forward/Center
5
Saint Benilde
2012
Trade
4
Mark Sanford
Forward/Center
3
Washington
2004-2005
Import
5
Rodney Santos
Guard/Forward
45
San Sebastian
2009
Free Agency
6
Jovy Sese
Forward
20
Manuel Luis Quezon
2002
Free Agency
7
Dale Singson
Guard
50
Santo Tomas
2005-2006, 2009-2010
Trade
8
Omar Sneed
Forward
11
Memphis
2012
Import
9
Ervin Sotto
Forward/Center
13
Saint Francis
2007
Trade

Questions and formulas:
Question: What was the school/club team whose season was in 2012 and were acquired via trade? 
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(E1=2012)*(F1="Trade")),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F9,(E2:E9=2012)*(F2:F9="Trade")),4))
Level: medium
Question: Which school/club team has a player named Mark Sanford? 
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="Mark Sanford"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F9,A2:A9="Mark Sanford"),4))
Level: medium
Question: How many school/club teams have a player named Manuel Luis Quezon? 
Formula: SUMIFS(C1,D1,"Manuel Luis Quezon")
Formula2: SUMIFS(C2:C9,D2:D9,"Manuel Luis Quezon")
Level: easy
Question: How many players are listed for the school/club team Washington? 
Formula: ROWS(UNIQUE(FILTER(A1, D1="Washington")))
Formula2: ROWS(UNIQUE(FILTER(A2:A9, D2:D9="Washington")))
Level: medium
Question: How many players with a position are listed for the 2009 season? 
Formula: ROWS(UNIQUE(FILTER(B1, E1=2009)))
Formula2: ROWS(UNIQUE(FILTER(B2:B9, E2:E9=2009)))
Level: medium