although... if the language "Tocharian B" is extinct, how can we know its pronunciation? There must be a way, but I can't fathom it myself.
Speakers of Danish, Norwegian and Swedish can usually talk to eachother without major issues although the kids seem to be preferring to speak English nowadays.
Spoken Icelandic or Faraoese on the other hand? I usually manage to get a single word or phrase. The rest is gibberish.