Do you know/ Could you tell me?
When will you accept my love?
Do you know when you will accept my love?/ Could you tell me when you will accept my love?
Whose boat is in the parking lot?
Do you know whose boat is in the parking lot? / Could you tell me whose boat is in the parking lot?
What time does the bus leave?
Do you know what time the bus leaves? / Could you tell me what time the bus leaves?