New PMP Question & Answers with explanation

You have recently taken over a project from a PMP-certified project manager who was removed from the project due to incompetence and lack of skills. When you happen to meet him outside your building, he starts rebuking you for taking his project. He even goes so far as to suggest that your religion played a part in your selection by the management. What should you do first?
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What should you do as a senior project manager if the PMP certification claimed by a recently recruited project manager does not appear in the PMI website?
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While conducting interviews for a project manager position, you notice that your classmate is one of the prospective candidates. What should you do immediately?
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A company hires you to work as a project manager in a foreign country. You discover that you must pay kickbacks to the officials there to get licenses for your project. What should you do?
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The management of a retail business unit has just assigned Mario to compare multiple projects and select the best project that will produce the most value for the unit. Although Mario has worked as a project manager for a long time, he has only a limited understanding of project selection methods. What should be the first course of action from Mario in this scenario?
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