Sir, i still didn't get the use of "do/does" properly. Let me explain where i got confused in between ex. क्या आपको ये काम पसंद है? Do you like this job? U told that V use do/does when there is verb in a simple sentence now tell me what is verb here?

"Do and does" are helping verbs which are used in negative or interrogative sentence of simple present tense. Do you like this job? (here "like" is a main verb)

Here "like" is verb.

Do/does - is used in simple present tense when there is a main verb in the given sentence. For ex:- Do you like to watch TV in your free time? She does not go there on Monday. * Your sentence which you've written here.That's absolutely right. In that sentence, like is a main verb. So it's been used "do" here as a helping verb.

There is no sir or mam here. All are learners. I am also a learner. so, Please don't use these words here like sir or mam. Do/Does is used in any question of Present Indefinite tense. such as : Do I watch the television? Doesn't you like me? Do I sleep?