Table:
0
A
B
C
D
E
1
Date
Tournament
Surface
Opponent in final
Score in final
2
April 26, 1999
Munich , Germany
Clay
Franco Squillari
6–4, 6–3
3
June 14, 1999
s’Hertogenbosch , Netherlands
Grass
Patrick Rafter
3–6, 7–6, 6–4
4
October 27, 2003
Paris , France
Carpet
Tim Henman
6–2, 7–6, 7–6
5
April 25, 2005
Munich, Germany
Clay
David Nalbandian
6–4, 6–1
6
May 22, 2006
Portschach , Austria
Clay
Nikolay Davydenko
6–0, 6–3
7
July 23, 2007
Umag , Croatia
Clay
Carlos Moyà
6–4, 6–2

Questions and formulas:
Question: What is the date of the munich, germany tournament?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="munich, germany"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7="munich, germany"),1))
Level: medium
Question: What tournament is on October 27, 2003?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="october 27, 2003"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7="october 27, 2003"),2))
Level: medium
Question: Who is the opponent in the final of the tournament on May 22, 2006?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="may 22, 2006"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7="may 22, 2006"),4))
Level: medium
Question: What is the surface of the tournament with david nalbandian as the opponent in the final?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="david nalbandian"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,D2:D7="david nalbandian"),3))
Level: medium