Misc: in a standard digital telephone, which button also denotes the letters mno?

Questions

what, in population terms, is the largest spanish speaking country in the world?

kim dae-jung was awarded the nobel peace prize for working towards reconciliation, of which country was he president?

which international organisation was set up in the aftermath of the first world war with the aim of attaining world peace?

there are three countries that have both an atlantic and a mediterranean coast, name them?

what does the acronym camra stand for?