Left one is Norwegian. E55 and E47 are not in Norway, but in Sweden and Denmark (Also would be “fartskontroll” in Norwegian). Max is spelt “maks” in Norwegian (Also it would be a compound word “maksfart”). It is possible that the two images on the right are fake, though.

Also 🇧🇻 🇳🇴 🇸🇯 “These are all the flag of Norway” you might say, and that is correct. But one is for Bouvet Island, one is for Norway, and one is for Svalbard and Jan Mayen (in that order, here). Norway’s national day was recently and it is fun every year to see so many people celebrating Bouvet Island (it shows up first in alphabetical lists).