Can I rent a room in oslo and what wil be the cost approxitely.

you can find rooms on finn.no but these are probably expecting people who will stay a while, not a short rental.

The costs for the Oslo area seem to be around 5000 NOK per month and up

https://m.finn.no/realestate/lettings/s … p;filters=

If you're looking for a short rental they might be cheaper though. In that case, look for ads that mention "korttidsleie"

Thank you for your reply. I much  appreciate it.

Do you know a good place to practice bokmal I am trying to learn it. I have by ha much luck with the London community on the net and I have also tried to contact norweigian natives but nothing seems to be working.

for language learning:

https://www.duolingo.com/https://www.ntnu.edu/norwegiancourse/no … on-the-web

Thank you very much

I was told once that in a collective (several people sharing a flat) in Oslo central area, the rent is usually approximately 8000kr per person.  I am unsure if it includes utilities as well.

will include a bed, kitchen use and electric probably, always that..