The word(s) "what" appears 597 time(s) in 511 verse(s) in Quran in Muhammad Pickthal translation.

(271) Lo! verily unto Allah belongeth whatsoever is in the heavens and the earth. He knoweth your condition. And (He knoweth) the Day when they are returned unto Him so that He may inform them of what they did. Allah is Knower of all things.

(272) And they say: what aileth this messenger (of Allah) that he eateth food and walketh in the markets? Why is not an angel sent down unto him, to be a warner with him.

(273) Thus they will give you the lie regarding what ye say, then ye can neither avert (the doom) nor obtain help. And whoso among you doeth wrong, We shall make him taste great torment.

(274) And when it is said unto them: Prostrate to the Beneficent! they say: And what is the Beneficent? Are we to prostrate to whatever thou (Muhammad) biddest us? And it increaseth aversion in them.

(275) Pharaoh said: And what is the Lord of the Worlds?

(276) Who would drive you out of your land by his magic. Now what counsel ye?

(277) Moses said unto them: Throw what ye are going to throw!

(278) When he said unto his father and his folk: what worship ye?

(279) He said: And what knowledge have I of what they may have been doing (in the past)?

(280) what! Of all creatures do ye come unto the males,