Re: Tarawih
the desis might not be completely blind... it was sunnah of the Prophet SAW to ONLY read 8 tarawih.... Hazrat Umar (r.a.) is the one who started offering 20 rakats (i guess it helps finishing the quran that way)...
The 8 rakats you are referring to were tahajjud prayer, not tarawih. Even in Makka and Medina, we pray 20 rakats, Alhamdulillah.
I wish not to debate this silly issue.