Table:
0
A
B
C
D
E
F
1
Train number
Train name
Origin
Destination
Service
Route/Via.
2
16724
Ananthapuri Express
Trivandrum
Chennai
Daily
Nagercoil,Madurai,Tiruchi
3
16127
Guruvayur Express
Chennai
Guruvayur
Daily
Trivandrum, Alleppey,Ernakulam
4
16128
Guruvayur Express
Guruvayur
Chennai
Daily
Nagercoil,Madurai,Tiruchi
5
16723
Ananthapuri Express
Chennai
Trivandrum
Daily
Kulitthurai,Neyyattinkara
6
16382
Jayanthi Janatha Express
Kanniyakumari
Mumbai
Daily
Trivandrum, Ernakulam, Pune
7
16525
Island Express
Kanniyakumari
Bangalore
Daily
Trivandrum, Ernakulam, Coimbarote
8
56701
Madurai Fast Passenger
Quilon
Madurai
Daily
Nagercoil,Tirunelveli,Virudunagar
9
56700
Quilon Fast Passenger
Madurai
Quilon
Daily
Trivandrum, Varakala
10
16526
Island Express
Bangalore
Kanniyakumari
Daily
Nagercoil
11
16381
Jayanthi Janatha Express
Mumbai
Kanniyakumari
Daily
Nagercoil
12
16317
Himsagar Express
Kanniyakumari
Jammu Tawi
Weekly
Trivandrum, Ernakulam, NewDelhi
13
16318
Himsagar Express
Jammu Tawi
Kanniyakumari
Weekly
Nagercoil
14
16650
Parasuram Express
Nagercoil
Mangalore
Daily
Trivandrum, Kottiyam,Ernakulam,Kozhikode
15
16649
Parasuram Express
Mangalore
Nagercoil
Daily
Nagercoil
16
16606
Ernad Express
Nagercoil
Mangalore
Daily
Trivandrum, Alleppey,Ernakulam,Kozhikode

Questions and formulas:
Question: How many trains are there for the route via trivandrum, ernakulam, newdelhi?
Formula: SUMIFS(A1,F1,"Trivandrum, Ernakulam, NewDelhi")
Formula2: SUMIFS(A2:A16,F2:F16,"Trivandrum, Ernakulam, NewDelhi")
Level: easy
Question: What is the route for the destination of  guruvayur?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="Guruvayur"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F16,D2:D16="Guruvayur"),6))
Level: medium
Question: How many route/via's are there for the ernad express?
Formula: ROWS(UNIQUE(FILTER(F1, B1="Ernad Express")))
Formula2: ROWS(UNIQUE(FILTER(F2:F16, B2:B16="Ernad Express")))
Level: medium
Question: What is the destination of the route kulitthurai,neyyattinkara?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="Kulitthurai,Neyyattinkara"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F16,F2:F16="Kulitthurai,Neyyattinkara"),4))
Level: medium
Question: What is the train number for the train name island express with a destination of kanniyakumari?
Formula: SUM(FILTER(A1, (B1="Island Express")*(D1="Kanniyakumari")))
Formula2: SUM(FILTER(A2:A16, (B2:B16="Island Express")*(D2:D16="Kanniyakumari")))
Level: easy