Question creation on Customer Support (BPO)

Under this project 20 questions on 5 different topics with 20 questions on each are to be created. The details of topics are given below. Questions must be of moderate to hard difficult level. At least 30% questions must be numerical based having real life situations.
1. Telemarketing & Telesales
2. Customer Service Management
3. Customer Handling & Query Resolution
4. Chat Process in BPO
5. Record Keeping