If your recipient is unknown, you could begin the letter using "Dear Sir or Madam." In more informal situations, you could simply say "Hello" or a similar form of greeting.
It is a single word 'whomsoever', not two words 'whom' and 'soever' as it is mentioned by you. The sentence 'To whomsoever it may concern' means the matter which would follow this sentence may have...
coal's wide range of products that can be produced from coal such as charcoal is a very dangerous substance used, it if not used correctly can cause death! other uses such as drawing utensils is...
Some governments define the term drug by law. In the United States, the Federal Food, Drug, and Cosmetic Act definition of "drug" includes "articles intended for use in the diagnosis, cure,...