Elaborate on parliment duties?

Answer 1

A parliament is a legislature, especially in those countries whose system of government is based on the Westminster system modelled after that of the United Kingdom. The name is derived from the French parlement, the action of parler (to speak): a parlement is a talk, a discussion, hence a meeting (an assembly, a court) where people discuss matters.

Answer 2

http://www.parliament.gr/english/organwsh/other.asp