Misc: what body of water separates australia and new zealand?

Questions

A person whom we know well enough to borrow from,but not well enough to lend to?

A woman with a fine prospect of happiness behind her?

To perform successively and successfuly mastication,humectation & deglutition?

Kazantzakis novel which became an Oscar-winning film in 1964?

Of which country is Juan Carlos king??