The word(s) "what" appears 731 time(s) in 612 verse(s) in Quran in Abdullah Yusuf Ali translation.

(361) When it is said to them, "Prostrate to (Allah) Most Gracious!", they say, "And what is (Allah) Most Gracious? Shall we prostrate to that which thou commandest us?" And it increases their flight (from the Truth).

(362) They have indeed rejected (the Message): so they will know soon (enough) the truth of what they mocked at!

(363) Pharaoh said: "And what is the 'Lord and Cherisher of the worlds'?"

(364) (Pharaoh) said to those around: "Did ye not listen (to what he says)?"

(365) "His plan is to get you out of your land by his sorcery; then what is it ye counsel?"

(366) Behold, he said to his father and his people: "what worship ye?"

(367) They said: "Nay, but we found our fathers doing thus (what we do)."

(368) He said: "And what do I know as to what they do?

(369) He said: "My Lord knows best what ye do."

(370) Then if they disobey thee, say: "I am free (of responsibility) for what ye do!"