Ten questions and its answers about lean manufacturing are presented. These questions are: 1. How many distinct value streams operate within your organization? 2. What percentage of your value streams have been value stream mapped? 3. What is the takt time for your primary value stream? 4. What is the value-added ratio for your primary value stream? 5. What (%) reduction in machine setup times have you experienced? 6. To what degree has the 55 program been implemented in your plant? 7. What percentage of your facility is in cellular versus functional layout? 8. What is your current DPMO (six sigma metric)? 9. Are your kaizen events tied to clear and understandable business objectives? 10. What percentage of your products are replenished using a kanban system?