Can we get in trouble for pulling a prank on a friend?

Consult with a criminal attorney for further guidance. This does not appear to have immigration consequences.

Can we get trouble due to a prank with friends?

While this doesn't appear to be a criminal matter, you should consult with a criminal attorney to confirm.

You can schedule an Infopass appointment at your local USCIS service center to inquire about the possible reasons for the delay.

You should leave immediately after a COS is denied. USCIS generally allows for 30 days to allow for you to collect your belongings and all.

Should I file I-130 for my non us citizen spouse along with my children or just only my spouse?

You should file a separate I130 for each family member.

Crew members on C1/D visas are generally unable to adjust status through that entry. Consult with an attorney for review of your specific case.

Receipt notice is issued by USCIS when you have properly submitted an immigration application to the service. An approval notice is issued by USCIS...

Arent the embassy supposed to have my passport while carrying out administrative processing and stamp the visa..why the return?

No they will return your passport since there is no definitive timeline for administrative processing.

Can I re_enter on B2 is it still Valid ? Please Reply to this I have only 2 weeks to decide and make a decision.. Thanks

You should consider consulting with an attorney as your question falls outside of what is reasonable for a free and general online forum.

My ex immigrant was recently deported. During his time here he was arrested several times including domestic assault.

It may be possible for him to acquire status through his spouse depending on many factors. This would require a consultation for further analysis.