Table:
0
A
B
C
D
E
F
1
Platform
Frequency (per hour)
Destination
Service Pattern
Operator
Line
2
1
4
Highbury & Islington
All stations via Shoreditch High Street
London Overground
East London
3
1
4
Dalston Junction
All stations via Shoreditch High Street
London Overground
East London
4
1
4
London Bridge
All stations
Southern
Metro
5
2
4
Crystal Palace
All Stations
London Overground
East London
6
2
4
West Croydon
All stations
London Overground
East London
7
2
2
London Victoria (Mon-Sat)
All stations via Clapham Junction
Southern
Metro
8
2
2
Caterham (Mon-Sat)
All stations via East Croydon
Southern
Metro
9
2
2
West Croydon (Peaks & Sun only)
Sydenham then fast to Norwood Junction
Southern
Metro
10
2
2
Tattenham Corner (Sun only)
All stations via East Croydon
Southern
Metro

Questions and formulas:
Question: How many frequencies have a line of East London and destination of Crystal Palace?
Formula: SUM(FILTER(B1, (F1="east london")*(C1="crystal palace")))
Formula2: SUM(FILTER(B2:B10, (F2:F10="east london")*(C2:C10="crystal palace")))
Level: easy
Question: Which line has an operator of the London Overground and ends at the Crystal Palace?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(E1="london overground")*(C1="crystal palace")),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,(E2:E10="london overground")*(C2:C10="crystal palace")),6))
Level: medium