Table:
0
A
B
C
D
E
F
1
Year
Under-11
Under-13
Under-15
Under-17
Under-19
2
1999
did not play
unknown
unknown
Moises Galvez
Bernardo Samper
3
2000
did not play
Adil Maqbool
unknown
Jhie Gough
Moises Galvez
4
2001
did not play
Antonio Glez
Arturo Salazar Martinez
Mauricio Sanchez
Moises Galvez
5
2002
did not play
Kelly Shannon
Arturo Salazar Martinez
Jahanzeb Khan
Julian Illingworth
6
2003
did not play
Brian Hong
David Letourneau
Andrew Budd
Miguel Rodriguez
7
2004
unknown
Nicholas Sachvie
Kelly Shannon
Colin West
Miguel Rodriguez
8
2005
unknown
David Wardle
Arjun Gupta
Antonio Glez
Chris Sachvie
9
2006
unknown
Sam Conant
Nicholas Sachvie
Todd Harrity
Arturo Salazar Martinez
10
2007
Max Martin
Dylan Murray
David Wardle
Alfredo Avila
Mohammed Ali Anwar Reda
11
2008
David Yacobucci
Juan C Gomez
Ahmed Latif
Miled Zarazua
Todd Harrity
12
2009
Ryan Murray
Guillermo Cortes
Seif El Einen Jr
Ahmed Abdelhalim
Miled Zarazua
13
2010
Aly Abou El Einen
Mohamed El Shamy
Diego Elias
Fady Sarwat
Nicolas Sachvie
14
2011
Ayush Menon
Salim Khan
Mahmoud Yousry
Seif El Heinen
Ahmed Abdel Khalek

Questions and formulas:
Question: When the under-17 was Antonio Glez, who was the under-13?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="Antonio Glez"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F14,E2:E14="Antonio Glez"),3))
Level: medium
Question: In the year 2009 who was the under-13?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1=2009),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F14,A2:A14=2009),3))
Level: medium
Question: When Julian Illingworth was the under-19, who was the under-15?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="Julian Illingworth"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F14,F2:F14="Julian Illingworth"),4))
Level: medium
Question: Who was the under-15 when Moises Galvez	was the under-17?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="Moises Galvez"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F14,E2:E14="Moises Galvez"),4))
Level: medium
Question: How many years are there where the the under-15 is Arturo Salazar Martinez and the under-19 is Moises Galvez?
Formula: ROWS(UNIQUE(FILTER(A1, (D1="Arturo Salazar Martinez")*(F1="Moises Galvez"))))
Formula2: ROWS(UNIQUE(FILTER(A2:A14, (D2:D14="Arturo Salazar Martinez")*(F2:F14="Moises Galvez"))))
Level: medium
Question: When the under-11 was Aly Abou El Einen, who was the under-13?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="Aly Abou El Einen"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F14,B2:B14="Aly Abou El Einen"),3))
Level: medium