Answered by Ustadh Salman Younas
Question: Could you share the ruling regarding sharing food or water with non-mahrams? I study at a co-educational university and my friends and I face instances where boys ask for water.
Answer: assalamu `alaykum
This would be permitted although it would be better to avoid when possible.
It goes without saying that our religion has particular guidelines when it comes to interacting with the opposite gender the details of which can be found in the links below:
Checked & Approved by Shaykh Faraz Rabbani