The word(s) "knows" appears 161 time(s) in 141 verse(s) in Quran in Mohsin Khan translation.

(61) Likewise, We awakened them (from their long deep sleep) that they might question one another. A speaker from among them said: "How long have you stayed (here)?" They said: "We have stayed (perhaps) a day or part of a day." They said: "Your Lord (Alone) knows best how long you have stayed (here). So send one of you with this silver coin of yours to the town, and let him find out which is the good lawful food, and bring some of that to you. And let him be careful and let no man know of you.

(62) And thus We made their case known (to the people), that they might know that the Promise of Allah is true, and that there can be no doubt about the Hour. (Remember) when they (the people of the city) disputed among themselves about their case, they said: "Construct a building over them; their Lord knows best about them;" (then) those who won their point said (most probably the disbelievers): "We verily shall build a place of worship over them."

(63) (Some) say they were three, the dog being the fourth among them; and (others) say they were five, the dog being the sixth, - guessing at the unseen; (yet others) say they were seven, and the dog being the eighth. Say (O Muhammad صلى الله عليه وسلم): "My Lord knows best their number; none knows them but a few." So debate not (about their number) except with the clear proof (which We have revealed to you). And consult not any of them (people of the Scripture - Jews and Christians) about (the affair of) the people of the Cave.

(64) Say: "Allah knows best how long they stayed. With Him is (the knowledge of) the Unseen of the heavens and the earth. How clearly He sees, and hears (everything)! They have no Wali (Helper, Disposer of affairs, Protector) other than Him, and He makes none to share in His Decision and His Rule."

(65) Kaf-Ha-Ya-'Ain-Sad. [These letters are one of the miracles of the Qur'an, and none but Allah (Alone) knows their meanings].

(66) Verily He knows each one of them, and has counted them a full counting.

(67) Ta-Ha. [These letters are one of the miracles of the Qur'an, and none but Allah (Alone) knows their meanings].

(68) And if you (O Muhammad صلى الله عليه وسلم) speak (the invocation) aloud, then verily, He knows the secret and that which is yet more hidden.

(69) He (Allah) knows what happens to them (His creatures) in this world, and what will happen to them (in the Hereafter) but they will never compass anything of His Knowledge.

(70) He (Muhammad صلى الله عليه وسلم) said: "My Lord knows (every) word (spoken) in the heavens and on earth. And He is the All-Hearer, the All-Knower."