GoF Mysteries

[tallulah_sam]

No: HPFGUIDX 75654

Some things that have been troubling me since reading Gof...
1) when Hermione states when talking about the judges for the 
Triwizard Tournament.. "Well the heads of the schools are always on 
the panel"...."because all three of them were injured during the 
tournament of 1792" So...does this mean the heads of the schools at 
any time the tornament is on are on the panel or does it mean 
Dumbledore,Karkaroff and Maxime are always on the panel? 

2) Why does Moody (a.k.a crouch) teach them the unforgivable curses? 
why does he make sure Harry can fight off the imperious curse? 
Surely this is a hinderance to LV? 

3) How did the Riddles die? it says they looked shocked-did they die 
from looking at the basilik? or is Nagini not a basilik?Im confused!!

Any ideas would be welcome!
Tallulah