Day Questions

Is wearing the niqab recommended?

It is not obligatory to cover the face and the hands. It is preferred to do so as it is a form of chastity.

Is it allowed to rub one's hands on one's face after Qunoot in obligatory prayers?

Yes, it is permissible, but it was reported in texts narrated by the Ahlul-bait (peace be upon them) that it is not recommended.

Is it forbidden to work on Friday after hearing the Adhan at noon?

Work is not prohibited after the Adhan on Fridays, since one has the choice at that time between offering Friday prayer or Dhuhr prayer, and the obligation is in between these two choices.