Travelling without a mahram

Q: I am an unmarried working woman and my questions are:

1. Can I travel with a non mehram senior colleague through plane from Lahore to Karachi?

2. Can I stay in Karachi for a week with that senior colleague in separate rooms?

3. Can I go to visit Karachi beach with 3 male colleagues after office?

Please guide me in both the cases if I have option to avoid this situation and if I dont have an option to avoid. I shall be thankful to you for your timely guidance.

Sadaqah

Q: Last couple of months my wife is very sick and I would like to give out Sadaqa. My question is 1:-What intention I must make? 2:-Can I give this Sadaqa to poor Non Muslims?

Passing wind

Q: I have heard that passing wind being in the state of wudhu, breaks wudhu only if the wind has odour or sound. Otherwise wudhu remains valid. Is it true?