Which 10-letter word means the owner of a hotel or other business?

Ten kids, nine seats and a piano are all you need to play which party game? Which adverb means "in a fatherly manner"? What does it mean when a baseball pitcher is called a "southpaw"? Which word describes a difficult, bad-tempered, cantankerous person? Which 10-letter word means impervious to sound? Ten members of which secret society of Irish immigrant coal miners were hanged in Pennsylvania on June 21, 1877? In carpentry, 10-penny, 16-penny and 20-penny are sizes of what? Which Olympic event consists of 10 track and field events held over two days?