Classical Music: Name the composer who tried to commit suicide by jumping in the Rhine. ?

Questions

Literature - Who's last words were 'Thus with a kiss I die'?

Longevity - How old was the world's oldest man?

Longevity - Who was the world's oldest man?

Maritime Trivia - On a ship, what is the line that indicates the maximum load that may be transported?

Mathematics - How many different letters are used in the roman numeral system?