Justice
 

Yes, but not in the current world.
I wanted to say that I'll explode some houses, fire cars etc. and etc.- it is the best way to get the "justice" from government or change it to the one that will give. But I'll be honest: I'll do nothing. The situation in my country has nothing with the subject, but I did nothing to change it.

Yes, but I don't believe in "An eye for an eye". The criminal should receive a punishment equal to the crime he committed. Example, not all murder is the same, if someone killed for money then it's a bigger crime then killing for revenge.
However, I don't believe in the death penalty no matter what the crime may be. The reason is that a government representing the people has no right to kill, simply because not all people approve of the killing. And a government has also no right to ask the people if they approve or not, asking people to vote on such thing would be unfair, a person who might be against the death would then have to choose between sentencing an other human being to death or let someone who deserves to die live.
So when it comes to the death penalty, I believe justice shouldn't be the applied.
That wouldn't be justice, who am I do judge?

Depends on the crime.