Can you help me?

Yes.

Where's the toilet?

Where's the hospital?

All of those were direct questions.

They're easy to ask and understand, but sometimes if we want to be polite or friendly,

we ask indirect questions like this.

We can use phrases like " do you know ", " could you tell me ", " would you mind " and " is there any chance you could ".

For example : Do you know where the cafe is?

Could you tell me when you 'll finish the report?

Would you mind telling me where the toilets are?

Is there any chance you could help me with this?

We can also use " if " and " whether " like this.

I wonder if you can help me?

Do you know if there's a bank near here?

Could you tell me whether Mark prefers fish or chicken curry?

So now you can stop asking direct questions, and start asking indirect questions instead.