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
Williamson	['wiljəmsən]
Adlard	['æla:d]
Themistoklis	-	Greek
Kenton	KEN-tən	English
Ahmed	-	Turkish, Bosnian, Arabic, Urdu, Pashto
Erwan	-	Breton