how do i obtain a list of federally chartered institutions

what is the approximated population of students in higher institutions in Nigeria

You can find a nice list of nationally accredited financial institutions here: http://www.lgugc.com/financial_institutions.htm .

The Distance Education and Training Council holds a list of accredited institutions. Alternatively, institutions not covered by the DETC may be found via the U.S. Department of Education's Database of Accredited Postsecondary Institutions and Programs.

Try the related link to Wikipedia's list of fictional elephants .