(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
Dannie	DAN-ee	English
Amador	-	Spanish
Dalton	DAWL-tən	English
Iounia	-	Biblical Greek
Thyra	-	Swedish, Norwegian, Danish
Sadbh	SIEV (Irish)	Irish, Irish Mythology