Table:
0
A
B
C
D
E
1
Nat.
Name
Type
Transfer window
Transfer fee
2
GER
Oliver Kahn
Career end
Summer
n/a
3
GER
Bernd Dreher
Career end
Summer
n/a
4
FRA
Willy Sagnol
Career end
Summer
n/a
5
GER
Marcell Jansen
Transfer
Summer
€ 8M
6
PAR
Julio dos Santos
Transfer
Summer
Free
7
GER
Jan Schlaudraff
Transfer
Summer
€ 2M
8
GER
Sandro Wagner
Transfer
Summer
Free
9
GER
Georg Niedermeier
Loaned out
Winter
€ 0.1M
10
GER
Toni Kroos
Loaned out
Winter
Free
11
USA
Landon Donovan
Loan return
Winter
n/a

Questions and formulas:
Question: Willy Sagnol with a type as career end had what has the transfer fee?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(C1="career end")*(B1="willy sagnol")),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(C2:C11="career end")*(B2:B11="willy sagnol")),5))
Level: medium
Question: Marcell Jansen with a transfer window of summer, and of transfer as type is from what nation?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(D1="summer")*(C1="transfer")*(B1="marcell jansen")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(D2:D11="summer")*(C2:C11="transfer")*(B2:B11="marcell jansen")),1))
Level: medium
Question: Marcell Jansen of the nation GER has what for the type?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(A1="ger")*(B1="marcell jansen")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(A2:A11="ger")*(B2:B11="marcell jansen")),3))
Level: medium
Question: What player had a transfer window of winter, and free as the transfer fee?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(D1="winter")*(E1="free")),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(D2:D11="winter")*(E2:E11="free")),2))
Level: medium
Question: Which player from GER has a transfer window of summer, and a transfer fee of n/a?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(D1="summer")*(A1="ger")*(E1="n/a")),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(D2:D11="summer")*(A2:A11="ger")*(E2:E11="n/a")),2))
Level: medium