How would you know whether someone's in the house or not?

We want to know whether the present administration's legal or not.

"Do you know whether the will was made or not?"

"Do you know whether he went out this front door?"

"Do you know whether Sam came in the house immediately after that?"

"Do you at least know whether they are alive or dead?"

"We just don't know whether a child that young will remember being behind bars."

He knows our weaknesses, whether it be in or away.

You just have to know whether the game's worth the candle.

"How the hell do I know whether your call's important?"