Eating meat sacrificed by one who does not pray

My father is a man who does not pray. He sacrifices for us,What is the ruling on this sacrifice when he slaughters?

One who prays in Ramadhaan but not in other months

What is the ruling on the one who preserves the prayers in the month of Ramadhaan, however, after Ramadhaan he abandons the prayer?

Ruling of praying more than 11 Rak'ah for Taraaweeh

The Sunnah, this is what we advise with, that you pray 11 Rak'ah.