Table:
0
A
B
C
D
E
1
Year
Date held
Winner
Events won by KCL
Events won by KCLMS
2
2004
8 March
GKT
4
10
3
2005
22 March
GKT
3
17
4
2006
15 March
KCLMS
9
18
5
2007
21 March
KCLMS
5
7
6
2008
27 February
KCLMS
4
8
7
2009
25 March
KCLMS
6
9
8
2010
31 March
KCLMS
7
10
9
2011
30 March
KCL
7
6
10
2012
28 March
KCLMS
6
11
11
2013
27 March
KCLMS
8
9

Questions and formulas:
Question: Which event won by KCLMS in 2008 has KCLMS as the winner and less than 10 wins by KCL?
Formula: SUM(FILTER(D1, (C1="kclms")*(E1<10)*(A1=2008)))
Formula2: SUM(FILTER(D2:D11, (C2:C11="kclms")*(E2:E11<10)*(A2:A11=2008)))
Level: easy
Question: How many years were the events won by KCLMS less than 7?
Formula: ROWS(UNIQUE(FILTER(A1, E1<7)))
Formula2: ROWS(UNIQUE(FILTER(A2:A11, E2:E11<7)))
Level: medium
Question: What is the average value for events won by KCL in a year earlier than 2004?
Formula: AVERAGE(FILTER(D1, A1<2004))
Formula2: AVERAGE(FILTER(D2:D11, A2:A11<2004))
Level: easy