Table:
0
A
B
C
D
E
F
1
Season
Host
Mens Singles
Womens Singles
Mens Doubles
Womens Doubles
2
1995/96
Kettering
Kong Linghui
Yang Ying
Werner Schlager Karl Jindrak
Yang Ying Wang Hui
3
1996/97
Kettering
Jean-Michel Saive
Chen-Tong Fei-Ming
Christophe Legout Patrick Chila
Chai Po Wa Qiao Yunping
4
1998/99
Hopton-on-Sea
Ma Wenge
Jie Schoepp
Trinko Keen Danny Heister
Lee Eun-Sil Ryu Ji-Hae
5
2000/01
Chatham
Wang Liqin
Yoshie Takada
Timo Boll Zoltan Fejer-Konnerth
Kim Hyang Mi Kim Hyon Hui
6
2008/09
Sheffield
Ma Long
Guo Yan
Ma Long Wang Liqin
Kim Kyung Ah Park Mi Young

Questions and formulas:
Question: Who is everyone on the men's doubles when men's singles is Ma Wenge?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="Ma Wenge"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,C2:C6="Ma Wenge"),5))
Level: medium
Question: Who are all men's doubles when men's singles is Jean-Michel Saive?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="Jean-Michel Saive"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,C2:C6="Jean-Michel Saive"),5))
Level: medium
Question: Who are all men's doubles when men's singles is Jean-Michel Saive?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="Jean-Michel Saive"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,C2:C6="Jean-Michel Saive"),5))
Level: medium
Question: Who are all hosts when men's singles is Ma Wenge?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="Ma Wenge"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,C2:C6="Ma Wenge"),2))
Level: medium
Question: How many people are women's singles in the season of 2000/01?
Formula: ROWS(UNIQUE(FILTER(D1, A1="2000/01")))
Formula2: ROWS(UNIQUE(FILTER(D2:D6, A2:A6="2000/01")))
Level: medium