TASK DEFINITION: Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.
PROBLEM: What should be your response when your boss thanks you for using his own resource allotted to you and you respect your boss and cannot respond him like It's ok or you're welcome.

SOLUTION: Some appropriate responses would be: 'My pleasure.' 'Don't mention it.' 'You're [most] welcome.' 'I'm glad I could help/be of help.' 'Oh [no], thank you! Always at your service.' 'It was not a problem at all. [I'm] glad I could be of assistance.' And, of course, you could use 'sir' or 'ma'am' to make your response even more polite.

PROBLEM: This question comes from a quiz but I could not find the correct answer.

SOLUTION: This image comes from a Quiz 'Which English?' which people were invited to take as part of a study into language acquisition. While the Quiz purports to be able to identify which local variant of English you speak from your answers, it actually serves dual purpose and forms part of a study into how language acquisition varies with age. According to the supplementary materials (see p.58) of the paper for which the Quiz was conducted, the correct answer varies by English region so there is no universally correct answer to this question.

PROBLEM: I need some information from person A. Person A is not willing to give it to me. So instead of asking directly I keep asking secondary questions hoping that he may say something that might (partially) hint me the information I need. I may even ask other people. Or keep asking so many times that person A would have had it and just told me because he can't stand my questions any more. It's like extorting, but without using threats or violence, but cunning and perseverance. What word am I looking for? Although he refused to tell me where he got the money from, I persevered and finally <???> the information from him.

SOLUTION:
Finagle I think the word finagle has all of the connotations you are looking for. Although he refused to tell me where he got the money from, I persevered and finally finagled the information out of him. Merriam Webster defines finagle as follows: finagle - intransitive verb 1 : to obtain by indirect or involved means 'finagle a ride home' 2 : to obtain by trickery 'He finagled his way into the concert.' 3 : to use devious or dishonest methods to achieve one's ends 'A con man finagled my neighbor out of $400.' Some synonyms for finagle: deceive, manipulate, scheme, swindle, trick