How many seasons did 'Friends' run?

Which 'Friends' character sings "Smelly Cat"? Who played Rachel Green in 'Friends'? Who played Chandler Bing in 'Friends'? Who played Ross Geller in 'Friends'? What is the name of Joey's stuffed penguin in 'Friends'? In 'Friends', whom does Phoebe marry? Where is the paper company in the U.S. version of 'The Office' located? What is the name of the paper company in 'The Office' (U.S.)?