Hi Lueey. I am afraid it is not possible to pinpoint where exactly to find answers for the kind of questions you listed below. The answers will depend on the type of questions asked. One way is to know whether you are right or wrong to the questions is to do lots of mock exams.
Training for Project Management Professional (PMP)®, PMI Agile Certified Practitioner (PMI-ACP)®, and Certified Associate in Project Management (CAPM)®