(I'll be) hanged if I know!

I have absolutely no idea! A: "How are you supposed to turn on this newfangled computer?" B: "Hanged if I know!" I'll be hanged if I know how to fill out these tax forms!

Common Names:

Name	Pronounced	Usage
Channing	CHAN-ing	English (Modern)
Eliou	-	Biblical Greek
Adolphus	-	Ancient Germanic (Latinized)
Ragnvaldr	-	Ancient Scandinavian
Ivane	-	Georgian
Lari	LAH-ree	Finnish