Review of looping - while vs for conceptually — IITM BS previous year questions

Review of looping - while vs for conceptually is part of Iteration in Depth, Week 2 in Computational Thinking. Prasnya files every IIT Madras BS previous year question from this subtopic here, each one with a worked explanation. Take the whole set as a timed mock and you get accuracy, pacing and per-question analysis back.