Table:
0
A
B
C
D
E
1
Date
Location
Nature of incident
Circumstances
Casualties
2
2009-02-11
Mazar-i-Sharif
unknown
unknown
1 killed
3
2009-03-14
Fayzabad
Non-hostile
Traffic accident
1 dead, 2 injured
4
2009-04-29
Kunduz area
Hostile
Suicide bomber attack
5 WIA
5
2009-04-29
Kunduz area
Hostile
Direct fire
1 KIA, 10 WIA
6
2009-05-06 to 2009-05-07
Fayzabad Area
Hostile
Combat
1 WIA
7
2009-06-07
Kunduz
Hostile
Direct fire
2 WIA
8
2009-06-23
Kunduz
Hostile
Combat
3 KIA,3 WIA
9
2009-08-03
Sheberghan
Non-hostile
Traffic accident
6 WIA
10
2009-08-07
Kunduz
Hostile
Direct fire
1 WIA
11
2009-08-15
Kunduz
Hostile
Direct fire
1 WIA
12
2009-09-03
Kunduz
Hostile
Combat
4 WIA
13
2009-09-05
Kunduz
Hostile
SVBIED attack
5 WIA
14
2009-09-16
Kunduz
Hostile
Combat
8 WIA
15
2009-11-11
Kunduz
Hostile
Direct fire
1 WIA
16
2009-12-05
Mazar-i-Sharif
Non-hostile
Accidental explosion
3 injured
17
2009-12-14
Eshkashem
Non-hostile
Accident
5 injured
18
2009-12-16
Kunduz
Hostile
Combat
2 WIA

Questions and formulas:
Question: What happened on 2009-09-05?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="2009-09-05"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E18,A2:A18="2009-09-05"),4))
Level: medium
Question: Where was the combat of 2009-09-16?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(D1="combat")*(A1="2009-09-16")),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E18,(D2:D18="combat")*(A2:A18="2009-09-16")),2))
Level: medium
Question: What happened on 2009-03-14?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="2009-03-14"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E18,A2:A18="2009-03-14"),4))
Level: medium
Question: How many casualties from the combat in the Fayzabad area?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(D1="combat")*(B1="fayzabad area")),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E18,(D2:D18="combat")*(B2:B18="fayzabad area")),5))
Level: medium
Question: Where was the incident of 2009-09-05?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="2009-09-05"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E18,A2:A18="2009-09-05"),2))
Level: medium