Misc: In 1879 Sir Thomas ---------- , English composer, founded London Philharmonic, born.?

Questions

What two-word pen-name is used by American etiquette expert Judith Martin?

What does the title of the TV show C.S.I. stand for?

Barbie® doll used to drive a Chevrolet Corvette. What was her vehicle of choice after she tired of the Corvette?

What 1976 film popularized the line “I’m mad as hell and I’m not going to take it anymore!”?

The French term ‘cul-de-sac’ literally means what?