Misc: What did friar roger bacon invent?

Questions

What are ‘Mongrel’ cats referred to as?

In 1955, Elvis Presley and his original back up group, The Blue Moon Boys auditioned for a widely syndicated coat-to-coast amateur show, but were rejected. What was the name of the show?

The motto of the Royal Canadian Mounted Police is Maitiens le droit. What does Maitens Le droit mean in English?

In the Stephen King novel, Carrie, what was the name of the school Carrie attended?

What is the hollow necktie-knot substitute that snugs a neckerchief at the throat on a Boy Scout’s uniform called?