it is five questions and the answer is separated for every question . Also, it have to include all the requirements (or the questions) in each question.

pick up just two questions from 2 to 5 with answering question one

so, the total is three questions

I don not need it as essay format just the answer and it is important the answer is comprehensive everything said in question.

i think just one question (2) ask to be in essay form. (it does not mean more than one page) if the answer is one or half page, it is OK if it comprehensive everything in essay form