Misc: How do write 49 in Roman numerals?

Questions

what is the surname of the author john ronald reuel?

after who were the teenage mutant ninja turtles named?

which of the four teenage mutant ninja turtles was named after an artists and/or sculptor that did not occur in the same time period as the other three?

whose official neutral name is 'the helvetic confederation'?

what is the new name of the mound metalcraft company?