It didn't answer which question? After a moment of consternation, Juugo was suddenly struck with the idea that Sasuke might think this was an illusion - that he was an illusion. Wasn't that a standard tactic: split the group, and then approach disguised as another member of the squad? And if it was Madara, maybe he didn't trust the sharingan to reveal the disguise.

That was it, it was a test.

"Since you returned with Madara." There. Test hopefully passed, he could try a question of his own. "Are you feeling alright?"