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
Terance	TER-ənts	English
OtÁVio	-	Portuguese (Brazilian)
Divya	-	Indian, Hindi, Marathi, Kannada, Tamil, Telugu, Malayalam
Jodocus	yo-DO-kəs (Dutch)	Dutch (Archaic), Ancient Celtic (Latinized)
Steffie	-	German (Rare)
PÄIvÄ	PIE-va	Finnish