Cognizant Programmer Analyst Trainee interview questions

Questions based on resume, projects and skills. He gave me a maths teaser question, something about Work Time. I struggled a bit in that since I didnt expect such question, and even though I knew how to solve, I gave a delayed answer due to nervourness. He understood me and gave a chance to correct my answer. He then asked me what was the problem I encountered while solving and what could I have done differentely. I answered that the problem was simple, but if I saw it in different perspective I couldve solved quickly. He got the exact answer he was looking for, and was impressed. Overall he focused on my basic understanding of things, and my foundational knowledge.