It's anybody's guess

No one knows, so anyone's guess is as good as anyone else's. A: When will the messenger be here? B: It's anybody's guess.

Name	Pronounced	Usage
Henrikki	HEN-reek-kee	Finnish
Vladislav	vlah-dee-SLAHF (Russian)	Russian, Czech, Slovak, Slovene, Bulgarian, Serbian, Croatian, Medieval Slavic
Elric	-	Medieval English
Elda	-	Italian
Astaroth	-	Literature
Corey	KAWR-ee	English