Witr and Nawaafil

Q: Is there any Saheeh daleel that Rasulullah (Salallahu Alihi Waslam) and the Sahaba (Radiyallahu Anhum) prayed eight rakat taraweeh? Is taraweeh and tahajjud different salat to be prayed in one night?

Q: I usually read my witr salaah at the time of tahajjud, after the tahajjud salaah. However, sometimes by the time I finish my witr the fajr time has set in. Will this be regarded as qadha? Will I have to repeat it? Will it be better for me to read the witr before sleeping?

Q: Is it permissible to read 1 x 4 rakaat salaah for ishraaq instead of 2 x 2 rakaats salaah. Similarly with awwaabeen etc?

Q: A person read in his Awwabeen Salaah a portion of his qiraat alound and a portion softly. Is his Salaah valid? If valid, is sajda-e-sahw waajib upon him?

Q:

1. If one is late for fajr jamaat, and performing the sunnats will result in missing jamaat, what should one do?
2. Can the sunnats of fajr be performed after the fardh? I have noticed some brothers doing this?

Q: What is the ruling regarding lying down after the two sunnats of fajr in the Hanafi madhab?

Q: What is Salaat-ut-Tasbeeh and when and how to perform it?

Q: What is the difference between Qiyaamul Layl and Tahajjud? Is it necessary to sleep before offering Tahajjud or can one perform it immediately after Esha?

Q: If one does not know dua e qunoot what should he recite in place of it?

Q: Please can you advise how many rakaats to be read for Tauhajud and can one recite any surahs and also how many rakaats to be performed together?