All countries.
No African countries practice Buddhism as their main religion.
Agnostics by their nature dont believe in anything as they feel they are not equiped to understand reality./
Most countries do.
Names of Caribbean countries that practice chritianity
Agnostics do not believe anything about God. Agnostics do not believe in any type of religion.
People who have no belief in God are called "atheists" and they practice "atheism." People who are not sure if there is a God, hedge their bets and call themselves "agnostics."
31.4%
There is no recognized 'leader' for agnostics. However, a fair number agnostics are also interested in secular reasoning and philosophy, so many of the great philosophers of the ages (Socrates, Hume, Kant, Descartes) are read and debated by some agnostics. There are also a number of vocal agnostics/atheists who are in the public limelight a great deal, including Richard Dawkins.
That isn't a simple question to answer. Not all agnostics necessarily believe the same things. So, some do, some don't.
Countries described as federations differ in practice in general. All countries are run differently even if they are all technically federations in name.
Jews practice Judaism wherever they are. As of mid-2009, that still amounted to almost 140 countries in the world.
The countries you have named all practice representative democracy (oligarchy) as opposed to true democracy.