Misc: Who is the longest serving Head of State who is not a member of a Royal Family?

Questions

hitchhiker guide: the latest revision of the hitchhiker's guide has this to say about the earth:?

hitchhiker guide: they write the third worst poetry in the universe.?

dr seuss: the big-hearted moose?

dr seuss: this elephant hatched and egg and heard a who?

dr seuss: his most successful book, it launched the beginner books series?