Which are correct:
1-We need more time to answer more questions of our students.
2-We need more time to answer more questions of students.
3-We need more time to answer more student questions.
I think "more students' questions" and "more questions from (our) students" would work best, but are 1-3 acceptable?
We need more time to answer students' questions.
The repetition of "more" makes them a little awkward. I would dispense with one or the other.
We need time to answer more questions from our students.
We need time to answer more of our students' questions.
We need more time to answer the students' questions.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.