Is there free or paid Wi-Fi at the railway stations?

Fairytale Norway is a very traveler-friendly country, boasting plenty of free Wi-Fi spots, including the most major tourist attractions, cafes, airports, and railway stations, including the Oslo S, Bergen, and Trondheim train stations.

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Are there luggage lockers to leave my suitcases? 

Although it's impossible to say for sure as every train station provides a different set of onsite facilities, all the major railway hubs of the scenic country offer luggage storage for the travelers. But it's always better to check in advance as the Myrdal Central Station, for example, provides left luggage facilities only during April - October months. 

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Are there restaurants at the train stations?

As a rule, all train stations in Norway boast great in-house amenities, especially when it comes to the major rail hubs of the country, such as the Oslo Central Station. Most stations have on-site cafes where you can find at least several hot meals to choose from, a selection of sandwiches and drinks. But keep in mind that the stations located in the remote parts on the country might not provide any dining options, so it's better to check it up before your trip. 

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May I exchange currency at the railway stations?

The question of currency exchange bothers most of the travelers who arrive to/depart from beautiful Norway by train. All major railway station in the country (including the Oslo Central Station, Oslo Airport, Stavanger, and Trondheim stations) either house a cash service or have a currency exchange point nearby.

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Are there free WC at the stations?

All Norwegian train stations provide basic amenities, including bathroom facilities. As a rule, visitors are welcome to use them for free, however, at some rail stations you will be asked to pay a fee up to 10 kr (approximately 1 USD) to use them.