Indirect questions
Is there a mall around here?
Do you know / Do you have any idea / Can you tell me IF THERE'S A MALL AROUND HERE?
Where did you go last night?
Do you know / Do you have any idea / Can you tell me / Can you remember WHERE YOU WENT LAST NIGHT?
Does Danna live in London?
Do you know / Do you have any idea / Can you tell me / Can you remember IF DANNA LIVES IN LONDON?