All those who heard Him were astounded at His understanding and His answers. - Luke 2:47
Left behind at the temple, seated with the Jewish teachers, we don't know if God allowed the twelve-year-old Christ to exercise His full omniscience or to unleash just enough wisdom to astound His listeners. But we do know that not only did He listen and ask them questions, He answered them!
There are several examples in Scripture of Jesus posing a question that only He could answer. He certainly uses that method with me.
Sometimes He;ll cause me to dig through Scripture for question He seemed to initiate. Other times the question may come as a personalized whisper in my heart: "why are you acting that way?" Often my honest answer is, "I don't know, Lord. Can You tell me why?" If I really search His heart, He'll sooner or later give me insight into my reactions. He answers me, so that I don't have to live off my own answers.
If the boy Christ could answer difficult questions, surely we can trust the immortal One seated at the right hand of God to make intercession for us an give us new understanding.
They were astonished at His teaching because His message had authority. - Luke 4:32