Prayer

It is up to you. you can recite one or more and you can only limit that to the Fatiha.

No, it is for both. However, her prayer in her room is better and more rewardable.

This is permissible.

As long as your forehead and nose are touching the ground comfortably, this is permissible.

There is no limit.

This is what the Prophet salla Allahu alaihi wa sallam told his female companions. However, he did not tell them not to pray in the masjid. He directed them to what the best was.

It should be odd numbers

This is not sunnah and it is based on a hadeeth that is not authentic.

It lasts until about 10 to 15 minutes before the Athan.

As long as you are not travelling, you must pray on time and you don’t have to pray in the masjid. you can pray on the road or in any place.