We might need Steven to explain the difference between "freedom" and "liberty", and also between "right/s" and "law".
However, as I understand it, even though they're frequently used as synonyms, freedom is the general thing. As in: I'm free to travel the world, for example. In theory, I could go anywhere I pleased and where my passport is accepted; at any rate, nobody could stop me from leaving my country. In practice, though, I'm constrained by family obligations and also by lack of money. Therefore, I'm actually not at liberty to travel.
German doesn't make the distiction, there is just the one word:
Freiheit.
We do have one word for "right/s",
Recht/e, and another one for "law",
Gesetz. And the way I see it, laws are often there to curtail your rights. While we do have freedom of speech,
Recht auf freie Meinungsäußerung, for example, there are laws against insulting people. However, the two do cross over at times, because we talk about
Rechtssprechung (court rulings).
As to n° 3... You know, Marcin, for somebody who's just claimed his English wasn't up to complicated discussions, you don't half ask difficult questions, do you?
Anyway, there is no state where everyone is completely free, is there? Nor would you wish to live in a state where everybody was free to kill off or rob other people at will, for example, would you? And governments are always pretty good at telling their people how it's to everybody's good that their rights have been curtailed, aren't they? You'd therefore always want to take a really close look at the laws to be able to judge to whose benefit everybody's rights had really been reduced.
Personally, I think it's pretty dangerous, for example, if there is a serious infringement of individual people's rights/freedom, introduced solely to guarantee the continued existence of a state (read: one particular government). Take for example the laws against leaving the GDR - people got shot simply for wanting to live in a different country. Still, I'm sure schoolchildren in Eastern Germany were taught they were growing up in a free country, that they actually had much more freedom than the slaves of capitalism across the border.