CBSE 12th

Hello,
Go to this link and predict it:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
All the best.

Hello,
You need minimum 60% to remain safe.
All the best.

You have lots of option, so don't lose hopes. Focus on your exam, complete your class 12th. There are so many colleges who left seats for students appearing in compartment exams. And also, you can do courses which do not require Maths as subject, so just pass your exam first then apply for colleges.

These type of questions are not specifically mentioned you can assume that from the percentage only.

It totally depends on you. What you want to do in future. If you have more interest in computer, then go for BCA.

It's not compulsory that you have to take arts to get admission here. The minimum requirement for admission is 45%(40% if you are from reserved category) in any stream from a recognized board. The admission is based on the entrance exam.
Please refer to the link given below for more details:
https://www.shiksha.com/arts-fine-visual-performing/dance-choreography/course/b-a-in-dance-savitribai-phule-pune-university-ganeshkhind-274337

You should wait for the merit list. Though it's difficult and I'm not 100% sure that you will get.
Good luck!

I think, you should try for IP University in this, you have to give you entrance test then the university allots you colleges according to your rank in the entrance.

Admission in UG courses are based on merit list.