First Riddle on JKR's website (Website Spoiler See it yourself First )

[justcarol67]

No: HPFGUIDX 120350


moonmyyst wrote:
> > Would Aragog be considered a king?  What about the giants? 
Centaurs?  How are the goblins lead?  I personally do not think that
the HBP is a creature.  (maybe a half creature?)

Vivamus replied:
> They are all possibilities; we just don't have any information about
them. The Giant leader was called something else, not a king. <snip>

Carol adds:
The leader of the giants was called the Gurg (Chief). But "half-blood"
is used in the books specifically with regard to Wizards with one
Muggle (or Muggleborn) parent (or two Muggle grandparents). The term
used for half-human Wizards, rude though it sounds, is "half-breed." 

As the only half-bloods who've been identified so far (IIRC) are
Harry, Tom Riddle, and Seamus Finnegan, the first two have been ruled
out by JKR herself and the last is unlikely in the extreme, I'm voting
for a newcomer, probably Felix Felicis. I'm also betting that he's the
lionlike man of an earlier website revelation and (90 % certainty this
time) that he's the new DADA instructor.

Carol, who will be extremely disappointed if the HBP is part giant or
part goblin. (Bad enough that we have to put up with Grawp.)