S ir i am greencard hoder and a dependent on my son and staying since 10 may 2010 my age is 64 and my wife 59 not workin

This is really not an immigration question though there are certain benefit you may or may not be eligible for based on your status

What are my options to get permanent immigration status in US (green card)?

You will need an employer or family member to sponsor you.Please note your child must be 21 What did you do on the P-1?

Concurrent filing of forms I-130, I-485 and I-765.

For more info on the process see my website www.immigrate2usa.com

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If I don't get approve from Immigration judge in the Court what will happen?

Probably you can appeal I hope you have an immigration lawyer as the government has lawyers advocating their cause to deport...

How does my girlfriend "prove" having arrived to the U.S. prior to 16 years of age for the new deferred action plan?

These are good pieces of evidence , but the rules are not out yet see link below for more ...

Can an employee pay the fees for his own H1B petition?

NO

My wife is us citizen, and she want to petition my son , does my son need to interview?

Where is he now? He wil l likely need an interview

Employment between H1B and GC

You can do this after you file your I-485. After 180 days you can port to a new employer as long as certain conditions are met...

What are the benefits to register with the Selective Service if I am an international student?

There is no need to file in my opinion , but can not hurt

Can I apply for Premium Processing after I have got a RFE ? I have already responded to it under regular processing ?

Depends on the type of case you are talking about