At best the war Nickel is worth $.75. It contains 35% silver and that's not much. I have no idea about the foreign coin.
The only Nickels that contain silver have a large mintmark above the dome. They are all World War II dates. See that large P on yours. It's from the Philadelphia Mint. That makes it easy to identify.
Your second coin is a 1941 50 ore Norway and according to numista, it is worth somewhere between .62 and $2.21. https://en.numista.com/catalogue/pieces1454.html A couple on eBay are going for a bit more. https://www.ebay.com/sch/i.html?_fr..._nkw=50+Øre+-+Haakon+VII+Type+4+coin&_sacat=0 Welcome back to CT as it shows you joined almost 2 years ago.