Table:
0
A
B
C
D
E
1
Round
Date(s)
Clubs from the previous round
Clubs involved
Fixtures
2
First round
3 September 2006
none
127
60
3
Second round
24 September 2006
60 winners from the first round
122
56
4
Third round
11–12 November 2006
56 winners from the second round
81
40
5
Fourth round
21 December 2006 6–7 January 2007
40 winners from third round
57
28
6
Fifth round
21 January 2007
28 winners from fourth round
27
13
7
Sixth round
10 February 2007
13 winners from fifth round
15
7
8
Quarter-finals
28 February 2006 25 March 2007
7 winners from sixth round
8
4
9
Semi-finals
18–19 April 2007
4 winners from the quarterfinals
4
2
10
Final
27 May 2007
2 winners from the semifinals
2
1

Questions and formulas:
Question: When 4 clubs are involved, what is the average number of fixtures?
Formula: AVERAGE(FILTER(E1, D1=4))
Formula2: AVERAGE(FILTER(E2:E10, D2:D10=4))
Level: easy
Question: In the sixth round, what is the sum of fixtures when there were more than 15 clubs involved?
Formula: SUM(FILTER(E1, (A1="sixth round")*(D1>15)))
Formula2: SUM(FILTER(E2:E10, (A2:A10="sixth round")*(D2:D10>15)))
Level: easy