Table:
0
A
B
C
D
E
F
1
Line
Terminals
Status
Length
Total number of stations
Operator
2
Line 1
Etxebarri / Plentzia
Complete
31km
29
Metro Bilbao S.A.
3
Line 2
Basauri / Kabiezes
Complete
20km
25
Metro Bilbao S.A.
4
Mamariga Shuttle
Santurtzi / Mamariga
Complete
500 m
2
Metro Bilbao S.A.
5
Line 3
Etxebarri-Norte / Matiko
Under construction
5.885km
7
Metro Bilbao S.A.
6
Airport Line
Matiko / Aireportua
Under construction
6.491km
3
EuskoTren
7
Line 4
Matiko / Rekalde
In studies
6km
7
Metro Bilbao S.A.
8
Line 5
Etxebarri / Usansolo
In studies
8,8km
6
Metro Bilbao S.A.

Questions and formulas:
Question: Which operator runs the Mamariga shuttle line?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="Mamariga Shuttle"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,A2:A8="Mamariga Shuttle"),6))
Level: medium
Question: How many lengths of line 3 are given?
Formula: ROWS(UNIQUE(FILTER(D1, A1="Line 3")))
Formula2: ROWS(UNIQUE(FILTER(D2:D8, A2:A8="Line 3")))
Level: medium
Question: What are the terminals for line 2?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="Line 2"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,A2:A8="Line 2"),2))
Level: medium
Question: What is the status of the airport line?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="Airport Line"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,A2:A8="Airport Line"),3))
Level: medium