There's an interesting conversation recorded in Luke 24.17-19, between Jesus and a couple of guys on the road to Emmaus.
Jesus: “What are you talking about…?”
Cleopas: “Are you the only man living in Jerusalem who has not had news of the things which have taken place there at this time?”
Jesus: “What things?”
Jesus wants to engage you. “What are you talking about?” is a question designed to get you into a conversation with Jesus. Don’t dismiss prayer because you know He already knows anything you’d have to say.
Prayer does not provide new intelligence to God. He has all the information He will ever need. Prayer is for you. When you need someone to talk to, Christ offers a willing ear.