Misc: A person in his eighties is called a(n) ?

Questions

Made In Canada: City where Motley Crue recorded Dr. Feelgood.?

Made In Canada: The only Canadian band to win Yamaha's International MusicQuest.?

General : At one time, 6 white beads of this Indian currency were worth one penny?

General : Originally made in Nimes, France, this fabric was called serge denimes?

General : The 2 months added when the Roman calendar was expanded from 10 to 12 months?