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

(511) Truly did Allah fulfil the vision for His Messenger: ye shall enter the Sacred Mosque, if Allah wills, with minds secure, heads shaved, hair cut short, and without fear. For He knew what ye knew not, and He granted, besides this, a speedy victory.

(512) O ye who believe! If a wicked person comes to you with any news, ascertain the truth, lest ye harm people unwittingly, and afterwards become full of repentance for what ye have done.

(513) Say: "what! Will ye instruct Allah about your religion? But Allah knows all that is in the heavens and on earth: He has full knowledge of all things.

(514) "what! When we die and become dust, (shall we live again?) That is a (sort of) return far (from our understanding)."

(515) It was We Who created man, and We know what dark suggestions his soul makes to him: for We are nearer to him than (his) jugular vein.

(516) "Who forbade what was good, transgressed all bounds, cast doubts and suspicions;

(517) (A voice will say:) "This is what was promised for you,- for every one who turned (to Allah) in sincere repentance, who kept (His Law),

(518) We know best what they say; and thou art not one to overawe them by force. So admonish with the Qur'an such as fear My Warning!

(519) "Taste ye your trial! This is what ye used to ask to be hastened!"

(520) (Abraham) said: "And what, O ye Messengers, is your errand (now)?"