SAP Reports questionnaire

I want to prepare a questionnaire. The details about it are as follows: -

1. Identify a large company/organization that is a prime candidate for DWH project. (For example Telecommunication, an insurance company, banks, may be the prime candidate for this)

2. Give at least four reasons for the selecting the organization.

3. Prepare a questionnaire consisting of at least 15 non-trivial questions to collect requirements/information about the organization. This information is required to build data warehouse.

Can you please tell me what should be those 15 questions to ask from a company, say a telecom company?
Thanks,