Some Rulings of Iddah

Summarized Fatawaa

Should water be put in the deceased`s mouth and nose while washing him/her?

No, it shouldn`t.

Is committing Zina (Adultery and extramarital sex) without the intention of getting pregnant or deflowered considered full Zina?

All perfect praise be to Allah the Lord of the Worlds. May Allah`s peace and blessings be upon our Prophet Mohammad and upon all his family and companions.
 
The Messenger of Allah (PBUH) says: "The eyes commit fornication, the hands, the feet, and the private parts." [Musnad Ahmad, P.3912]. Sheikh Shu`aib `Arn`oot graded this Hadith as sound. What you are asking about is far graver. Generally speaking,  sincere repentance erases sins, good deeds erase bad deeds, and fearing Allah stops one from committing this heinous act. In addition, the devil is man`s worst enemy and whoever surrenders themselves to the wolf will be eaten. And Allah The Almighty Knows Best.

My eyebrows are very thick. Is it allowed to reduce them by cutting?

All perfect praise be to Allah the Lord of the Worlds. May His peace and blessings be upon our Prophet Mohammad and upon all his family and companions.
 
It is allowed to reduce thick eyebrows by cutting them, however, it isn`t allowed to pluck or make very thin. And Allah The Almighty Knows Best.

Is it permissible for a person to give the Zakah(obligatory charity) to his daughter-in-law?

Yes, it is permissible for a person to give the Zakah to his daughter-in-law if she was poor, and wasn`t provided for sufficiently by whomever is obliged to provide for her.