A) from your objectives what's the functions of a political leaders?
As every other leader, political leaders are people meant to inspire, manage and make political decisions for the people they are leading.
B) is it good to have a political group in a country?
Political groups are meant to bring a level of organisation to the method of choosing a political leader. Instead of having everyone just coming out on their own to say they want to be leaders, political groups help screen and project candidates of their choice to help represent and enforce their promises to the masses.
C) why is that government has turn everything into politic?
Everything is political in some sort of way, but i don't quite understand the context in which you in mean that the government has turned everything to politics. The word "everything" is quite an elaborate word.
D) military regime and Democratic regime in your country via leadership which one do you prefer?
Democracy seems to disappoint me sometimes, people do things sometimes in this system indifferently without discipline or concern. It will be nice to see a military type of regime, with plenty toppings of democracy
E) is leadership meant for a particular political group.
In a system that is not kingship nor lineage based, leadership and political power is meant to be revovled around and given to the person that deserves it the most at that time, based on character, promises and the probability to deliver.