Misc: who recorded "burning bridges" in 1960?

Questions

What does the red spot on the Japanese flag represent?

How many years old was the telephone before one was installed on the desk of the President of the United States?

Which singer went solo after performing with the Commodores?

Who said , "Marriage is a wonderful invention - but so is the bicycle repair kit"?

In which athletics event would you perform a "Fosbury flop"?