this question is very bad
Germany
The Netherlands
true
true
true
Some through direct armed rebellion, some through revolutions in the colonizing country (namely, Portugal), some through referendum after a matter of time.
Catholics (found in most of Europe, Latin America and some other former European colonies) Protestants (found in some parts of Europe, the United States and some other former European colonies) Orthodox (found in Russia and parts of Eastern Europe)
Croatia is an independent country. It is a former part of Yugoslavia and not comprised of it's own countries.
Latin America
Serbia was a part of Yugoslavia at one time.
Not every country in the world is a former colony of another country, and there are even some countries that were former colonies, such as Canada or India, which became independent without having to fight a war of independence. And even colonies can, in some cases, have their own flag.