Use these links to help with your research.
http://hdr.undp.org/en/countries
https://www.cia.gov/library/publications/the-world-factbook/
https://www.transparency.org/country
https://www.census.gov/data-tools/demo/idb/informationGateway.php
Hint: If you want the pyramid, change the 'report' to pyramid. If you want an overview of population statistics, leave it on demographic overview.
https://data.worldbank.org/country
https://en.unesco.org/countries
