Q. How can I update some statistics?

You can try STATISTA, our statistics portal. Find it under "Electronic Resources A-Z." Type a keyword from the statistic, say "literacy rates."

If you want the direct route:

For United Nations statistics (UN Statistical databases), go to this link: http://unstats.un.org/unsd/databases.htm

For the World Bank (Data search): http://data.worldbank.org/

You can then search the specific statistic on each site.