Magic Software Test Engineer interview questions

basic manual questions. puzze question.

1. Basic question like - Diff. between re-test and regression, test strategy vs test plan, smoke vs sanity, stress vs load testing, Severity vs Priority? 2. Can maintenance projects which is in waterfall model be adopted to Agile model? Explain, if Yes? 3. How do you do Test Estimation? 4. What are Pigs, Chickens in Scrum? 5. Give Example for High Severity Low Priority? 6. When will Sprint fail in Scrum?