sharpdrivenye

The 183 days rule says that you have to be resident in a country for at least 6 months to be considered a tax resident.

Seeing that the EU has open borders, how would the country you are currently resident in know that you have been hopping from an EU country to another? For example, let's say you have residency in France, you got the residence card and you are now considered a resident there. If you spend 3 months in each country (Schengen countries) during a year, would you still be considered a tax resident in France? Or would you have to pay taxes to your home country (Non EU / Not a US citizen)? More precisely, how would France know you haven't been there for 6 months?

I have heard that getting accepted into NTNU is quite as hard as getting accepted into Stanford. I want to finish my masters in CS in there, and i was wondering if i can easily get accepted with above average grades or i should look into other Norwegian universities. Also, does nationality matter? Because where i am getting my bachelor's degree at now, is not considered a developed country and the university is pretty much unknown.