Re: What other languages have the "q" sound?
Hindi is indeed related to Urdu langage. It is a dialect of it. And like most languages, it has the phoneti capacity to accomodate a certain sound, but its speakers and the language itself does not have some allophones such as [khe] as in German [ch] or Greek [x]. Same case with [Qaf], [Ghain], Hay], [Ain], [zhe]. Much like Arabic does not have [Pa], Ta], Ra] etc. However, Urdu does have these phonemes. But still it tends not to differentitate between allophones of Arabic (D)vad] which in Urdu because of Persian influence carries the same phonetic value as [zay]. Hence it is [zvad]. Like Arabic close translitertion of the month Rama*d*an in English is still Ramzan in Urdu.