Advantages of rdbms and any aptitude questions on rdmbs are available?

what are you trying to say self clear next time maybe that's why you have a question I think is If you have any question is correct because any is plural indefinite pronoun so that's why it requires...

The first option (Is there any questions) is never right. Depending on what you want to say, the second and third options could work. For example, in discussing a fact, the second option might serve...

Most of the time when you are saying those phrases, you should use "Any questions". For example, "Do you have any questions?"

We look them up and then give you the anwer we are everyday people who just want to help people find things easy

Yes, and you can do that by going to "enter your question or phrase" empty box that you can write stuff in then, on the left top it says ask and at the bottom it says answer. Click on answer then you...