No, actually; Neo-Nazism is perfectly legal (it's considered a political party). The faculty at your school might frown upon white supremacy in a place that preaches equality for all, however. The only thing you absolutely can't do is pass out pro-Nazi Propaganda or literature (it's illegal).
Yes,I did that at school and I got suspended
Officially no. But it is still considered a horrible sign and if you begin wearing it the police will immediately arrest you.
It is not illegal to draw a Nazi sign or symbol in the United States as it is protected under the First Amendment as a form of free speech. However, displaying such symbols in certain contexts or with intent to incite violence or hatred may be considered illegal under hate speech laws.
Nazi signs were used to show that the Nazi were different
No, but it is highly contentious.
no
Yes, it is banned.
The swastika was used and also coupled with the Parteiadler (Party's eagle) and the Reichsadler (Empire's Eagle) as a sign of the Nazi party.
It is an inverted Indian good luck sign
You'd be arrested. It is illegal to display Nazi symbology in Germany.
Italy
swastika
It is illegal to download "Nazi Zombies" for free. You can buy the disc for "Call of Duty World At War" and "Nazi Zombies" is on it.