Do I have to go to my home country before my I94 expires?

You may apply for extension from within United States. You may travel to a third country and return to United States. However in either situation...

Can i change my status from B2 to F1?

Work with your DSO. You can try and if you do not have enough time you may need to depart the US.

The established priority date does not change. The priority date that is currently being worked can be checked in the state department visa...

Will there be any problems in my i539 approval?

If a misrepresentation was made and it is detected by CIS you may have issues. Work though an immigration attorney.

Can I go out of United States and come back again without any problem?

Travel is permitted with a valid visa, passport and valid status remaining. Each time an entry is made to USA CBP reviews your eligibility to enter...

I recently got naturalised in the us, do i still need to fill out form g325a and i 130with my alien registration number

Only if requested on an application or petition you are submitted

Its a good idea to have my spouse file for k3 visa?

At this point in time it is not worth filing.

Can someone with a green card file for his or her spouse for adjustment of status ?

They may file a visa petition and adjustment is possible if the Foreign National remains in status until the priority date is reached or the...

I am currently illegal (Out of status) .will there be problems when adjusting my status through marriage with a US citizen?

Based on the limited information provided you may adjust status in the US through marriage to a US citizen. A full review should be done with an...

N-400 through 3 years marriage rule

You need to be married and living together to qualify under the 3 year naturalization eligibility requirement. If you are not eligible you may...