Table:
0
A
B
C
D
E
F
G
H
I
1
1-person dive
2-person dive
3-person dive
Surface
Cage dive
Seal/turtle decoy
Catch release
Attached camera
Remote camera
2
none
none
none
raft
cage
seal/turtle decoy
fishing gear
attached camera
remote drone camera
3
1
2
3
2
2
2
2
2
0
4
VH
H
M
VL
M
L
L
M
none
5
VH
VH
VH
L
H
M
M
H
VL
6
FE, SO, AG, SE, HA
FE, SO, AG, SE, HA
FE, SO, AG, SE, HA
FE
FE, SO, AG, SE, HA
FE
RE, HE
FE, SO, RE, HA
FE, SO, RE, HA

Questions and formulas:
Question: What is the 3-person dive that has none as the 2-person dive?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:I1,B1="none"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:I6,B2:B6="none"),3))
Level: medium
Question: What is the 2-person dive that has 2 as the surface?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:I1,D1=2),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:I6,D2:D6=2),2))
Level: medium
Question: What surface has 2 as a cage dive?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:I1,E1=2),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:I6,E2:E6=2),4))
Level: medium
Question: Which cage dive has none as a 3-person dive?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:I1,C1="none"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:I6,C2:C6="none"),5))
Level: medium
Question: Which 3-person dive has 0 as a remote camera?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:I1,I1=0),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:I6,I2:I6=0),3))
Level: medium