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

(91) When they come unto you (Muslims), they say: We believe; but they came in unbelief and they went out in the same; and Allah knoweth best what they were hiding.

(92) And thou seest many of them vying one with another in sin and transgression and their devouring of illicit gain. Verily evil is what they do.

(93) They thought no harm would come of it, so they were wilfully blind and deaf. And afterward Allah turned (in mercy) toward them. Now (even after that) are many of them wilfully blind and deaf. Allah is Seer of what they do.

(94) There shall be no sin (imputed) unto those who believe and do good works for what they may have eaten (in the past). So be mindful of your duty (to Allah), and believe, and do good works; and again: be mindful of your duty, and believe; and once again: be mindful of your duty, and do right. Allah loveth the good.

(95) O ye who believe! Allah will surely try you somewhat (in the matter) of the game which ye take with your hands and your spears, that Allah may know him who feareth Him in secret. Whoso transgresseth after this, for him there is a painful doom.

(96) O ye who believe! Kill no wild game while ye are on the pilgrimage. Whoso of you killeth it of set purpose he shall pay its forfeit in the equivalent of that which he hath killed, of domestic animals, the judge to be two men among you known for justice, (the forfeit) to be brought as an offering to the Ka'bah; or, for expiation, he shall feed poor persons, or the equivalent thereof in fasting, that he may taste the evil consequences of his deed. Allah forgiveth whatever (of this kind) may have happened in the past, but whoso relapseth, Allah will take retribution from him. Allah is Mighty, Able to Requite (the wrong).

(97) Allah hath appointed the Ka'bah, the Sacred House, a standard for mankind, and the Sacred Month and the offerings and the garlands. That is so that ye may know that Allah knoweth whatsoever is in the heavens and whatsoever is in the earth, and that Allah is Knower of all things.

(98) The duty of the messenger is only to convey (the message). Allah knoweth what ye proclaim and what ye hide.

(99) And when it is said unto them: Come unto that which Allah hath revealed and unto the messenger, they say: Enough for us is that wherein we found our fathers. what! Even though their fathers had no knowledge whatsoever, and no guidance?

(100) O ye who believe! Ye have charge of your own souls. He who erreth cannot injure you if ye are rightly guided. Unto Allah ye will all return; and then He will inform you of what ye used to do.