Acronym Soup: JTYWTK?

Questions

what by-product of the manufacture of coca cola is sold to pharmaceutical companies?

in what year was the ballistic missile invented?

which toy, popular in the 80s, was 'easily', but not correctly, solved by removing the stickers or blocks to win?

what is your zodiabal sign if you are born on august 9th?

in alphabetical order, name the wilson brothers of the beach boys?