Table:
0
A
B
C
D
E
F
G
1
Date
Pilot
Weapon Systems Officer
Aircraft
Tail Code
Call Sign
Kill
2
May 10
Capt Richard S. Ritchie
Capt Charles B. DeBellevue
F-4D 66-7463
OY
Oyster 03
MiG-21
3
July 8
Capt R.S. Ritchie
Capt C.B. DeBellevue
F-4E 67-0362
ED
Paula 01
MiG-21
4
August 28
Capt. R.S. Ritchie
Capt C.B. DeBellevue
F-4D 66-7463
OY
Buick 01
MiG-21
5
September 9
Capt John A. Madden, Jr.
Capt C.B. DeBellevue
F-4D 66-0267
OY
Olds 01
MiG-19
6
September 9
Capt J.A. Madden, Jr.
Capt C.B. DeBellevue
F-4D 66-0267
OY
Olds 01
MiG-19

Questions and formulas:
Question: Which Call Sign that has a Tail Code of oy belong to Weapon Systems Officer Capt Charles B. Debellevue?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,(E1="oy")*(C1="capt charles b. debellevue")),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G6,(E2:E6="oy")*(C2:C6="capt charles b. debellevue")),6))
Level: medium
Question: Which Tail Code belongs to Weapon Systems Officer Capt Charles B. Debellevue?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,C1="capt charles b. debellevue"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G6,C2:C6="capt charles b. debellevue"),5))
Level: medium
Question: Which Aircraft has the Call Sign Paula 01?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,F1="paula 01"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G6,F2:F6="paula 01"),4))
Level: medium
Question: Which Call Sign that has Tail Code ed?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,E1="ed"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G6,E2:E6="ed"),6))
Level: medium
Question: Which aircraft Weapon Systems Officer Capt Charles B. Debellevue belongs on?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,C1="capt charles b. debellevue"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G6,C2:C6="capt charles b. debellevue"),4))
Level: medium