Table:
0
A
B
C
D
E
F
1
Team
Outgoing manager
Manner of departure
Date of vacancy
Replaced by
Date of appointment
2
Sint-Truiden
Valère Billen
Quit
18 September 2007
Peter Voets (caretaker)
18 September 2007
3
Anderlecht
Franky Vercauteren
Mutual consent
12 November 2007
Ariel Jacobs
12 November 2007
4
Dender EH
Jean-Pierre Van De Velde
Mutual consent
19 November 2007
Johan Boskamp
27 November 2007
5
Charleroi
Philippe Van de Walle
Quit
10 December 2007
Thierry Siquet
10 December 2007
6
Sint-Truiden
Peter Voets
Caretaker replaced
10 December 2007
Dennis Van Wijk
10 December 2007
7
Mouscron
Marc Brys
Fired
17 December 2007
Geert Broeckaert (caretaker)
17 December 2007
8
Brussels
Albert Cartier
Fired
22 December 2007
Edy De Bolle (caretaker)
22 December 2007
9
Mouscron
Geert Broeckaert
Caretaker replaced
27 December 2007
Enzo Scifo
27 December 2007
10
Brussels
Edy De Bolle
Caretaker replaced
24 January 2008
Franky Van Der Elst
24 January 2008
11
Mons
José Riga
Fired
27 January 2008
Albert Cartier
28 January 2008

Questions and formulas:
Question: How many have been replaced where the appointment date is 10 December 2007 and the manner of departure is quit?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(F1="10 December 2007")*(C1="Quit")),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,(F2:F11="10 December 2007")*(C2:C11="Quit")),5))
Level: medium
Question: What is the date of vacancy for 10 december 2007 when quit?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(F1="10 December 2007")*(C1="Quit")),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,(F2:F11="10 December 2007")*(C2:C11="Quit")),4))
Level: medium
Question: How many manners of departure did peter voets have?
Formula: ROWS(UNIQUE(FILTER(C1, B1="Peter Voets")))
Formula2: ROWS(UNIQUE(FILTER(C2:C11, B2:B11="Peter Voets")))
Level: medium