Tarawih in congregation

Dear scholars, As-Salamu `alaykum. My question is about Tarawih Prayer. I would like to know how many rak`ahs (prayer units) have to be performed in it? Some people claim that they are 20, and some say 8. Which one is the Sunnah? Please explain to me and Jazakum Allah khayran.

Is it allowed for someone to hold the Qur’an during the Tarawih Prayer, since he doesn’t feel right leaving his wife and baby at home in an unsafe area to go to the Mosque?

Dear scholars, As-Salamu `alaykum. Is Tarawih mandatory on women? Is it a confirmed Sunnah? Can you please shed some light on this issue for women who can’t go to the mosque for some reasons? Must they perform Tarawih as compulsory prayer, or is it nafl (supererogatory)? Jazakum Allah khayran.

Dear Scholars Asalam o alikum, Pls can you advise on my below questions 1) Is taraweeh sunnah as people say it was started by Hazarat Umar ? Is there any hadeeth ( pls can you give book and hadeeth number ) to confirm taraweeh as sunnah It states in Sunan adu dawood page 456 that it started in hazzrat Umra?s period 2) Is Eid salah farz 3) Is jumma salah faraz? 4) Are wives of Holy prophet allowed to go out of there homes ? as in Quran siparah 23 ayat 33 surah ehzab states the they should not go out ..if yes then why did hazrat Ayesha went out and fought hazrat Ali 5) Pls advise how was hazrat Ayesha martyred and who martyred her and where is her grave ?6) Was hazrat Ayesha on wrong in jung e jamal where she fought with hazrat ali 7) Is ijtihad allowed and who can do this ? 8) Are imammas masoom ?( 16th siparah 23 rd ayyat) 9) Surah e nisa 58 ayat 10) Surah e maidah 54 ayat 11) In how many ghazwas /wars did hazrat umar participated Ill be grateful if you can advise all my questi on through quotes of mustanid hadeeth/history books with ref i.e name /page numbers etc Jazak Allah Usman