The word(s) "whether" appears 38 time(s) in 34 verse(s) in Quran in Muhammad Pickthal translation.

(11) And if ye call them to the Guidance, they follow you not. whether ye call them or are silent is all one for you.

(12) And (there are) others who await Allah's decree, whether He will punish them or will forgive them. Allah is Knower, Wise.

(13) whether We let thee (O Muhammad) behold something of that which We promise them or (whether We) cause thee to die, still unto Us is their return, and Allah, moreover, is Witness over what they do.

(14) whether We let thee see something of that which We have promised them, or make thee die (before its happening), thine is but conveyance (of the message). Ours the reckoning.

(15) They all come forth unto their Lord. Then those who were despised say unto those who were scornful: We were unto you a following, can ye then avert from us aught of Allah's doom? They say: Had Allah guided us, we should have guided you. whether we rage or patiently endure is (now) all one for us; we have no place of refuge.

(16) Whosoever doeth right, whether male or female, and is a believer, him verily we shall quicken with good life, and We shall pay them a recompense in proportion to the best of what they used to do.

(17) Say: As for him who is in error, the Beneficent will verily prolong his span of life until, when they behold that which they were promised, whether it be punishment (in the world), or the Hour (of doom), they will know who is worse in position and who is weaker as an army.

(18) But if they are averse, then say: I have warned you all alike, although I know not whether nigh or far is that which ye are promised.

(19) Whoso is wont to think (through envy) that Allah will not give him (Muhammad) victory in the world and the Hereafter (and is enraged at the thought of his victory), let him stretch a rope up to the roof (of his dwelling), and let him hang himself. Then let him see whether his strategy dispelleth that whereat he rageth!.

(20) No blame is there upon the blind nor any blame upon the lame nor any blame upon the sick nor on yourselves if ye eat from your houses, or the houses of your fathers, or the houses of your mothers, or the houses of your brothers, or the houses of your sisters, or the houses of your fathers' brothers, or the houses of your fathers' sisters, or the houses of your mothers' brothers, or the houses of your mothers' sisters, or (from that) whereof ye hold the keys, or (from the house) of a friend. No sin shall it be for you whether ye eat together or apart. But when ye enter houses, salute one another with a greeting from Allah, blessed and sweet. Thus Allah maketh clear His revelations for you, that haply ye may understand.