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

(51) If a lucky chance befall you, it is evil unto them, and if disaster strike you they rejoice thereat. But if ye persevere and keep from evil their guile will never harm you. Lo! Allah is Surrounding what they do.

(52) Unto Allah belongeth whatsoever is in the heavens and whatsoever is in the earth. He forgiveth whom He will, and punisheth whom He will. Allah is Forgiving, Merciful.

(53) When ye climbed (the hill) and paid no heed to anyone, while the messenger, in your rear, was calling you (to fight). Therefor He rewarded you grief for (his) grief, that (He might teach) you not to sorrow either for that which ye missed or for that which befell you. Allah is Informed of what ye do.

(54) Then, after grief, He sent down security for you. As slumber did it overcome a party of you, while (the other) party, who were anxious on their own account, thought wrongly of Allah, the thought of ignorance. They said: Have we any part in the cause? Say (O Muhammad): The cause belongeth wholly to Allah. They hide within themselves (a thought) which they reveal not unto thee, saying: Had we had any part in the cause we should not have been slain here. Say: Even though ye had been in your houses, those appointed to be slain would have gone forth to the places where they were to lie. (All this hath been) in order that Allah might try what is in your breasts and prove what is in your hearts. Allah is Aware of what is hidden in the breasts (of men).

(55) O ye who believe! Be not as those who disbelieved and said of their brethren who went abroad in the land or were fighting in the field: If they had been (here) with us they would not have died or been killed: that Allah may make it anguish in their hearts. Allah giveth life and causeth death; and Allah is Seer of what ye do.

(56) And what though ye be slain in Allah's way or die therein? Surely pardon from Allah and mercy are better than all that they amass.

(57) what though ye be slain or die, when unto Allah ye are gathered?

(58) It is not for any prophet to embezzle. Whoso embezzleth will bring what he embezzled with him on the Day of Resurrection. Then every soul will be paid in full what it hath earned; and they will not be wronged.

(59) There are degrees (of grace and reprobation) with Allah, and Allah is Seer of what they do.

(60) And that He might know the hypocrites, unto whom it was said: Come, fight in the way of Allah, or defend yourselves. They answered: If we knew aught of fighting we would follow you. On that day they were nearer disbelief than faith. They utter with their mouths a thing which is not in their hearts. Allah is Best Aware of what they hide.