Table:
0
A
B
C
1
role code
role description
roles
2
ED
Editor
3
PT
Photo
4
MG
Manager
5
PR
Proof Manager

Questions and formulas:
Question: What are all role codes?
Formula: UNIQUE(A1)
Formula2: UNIQUE(A2:A5)
Level: easy
Question: What is the description of role code ED?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:C1,A1="ed"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:C5,A2:A5="ed"),2))
Level: medium
Question: Role codes
Formula: UNIQUE(A1)
Formula2: UNIQUE(A2:A5)
Level: easy
Question: ed description
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:C1,A1="ed"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:C5,A2:A5="ed"),2))
Level: medium
Question: the role code
Formula: UNIQUE(A1)
Formula2: UNIQUE(A2:A5)
Level: easy
Question: the description of the ed
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:C1,A1="ed"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:C5,A2:A5="ed"),2))
Level: medium