Dear Princess Toadstool
Dear Princess Toadstool is a regular feature of the Nintendo Comics System, in which Princess Toadstool answers letters from various Mario characters with comedic results. There are three installments in all.
The Super Mario 64 DS manual contains an "Ask Princess Peach" question-and-answer section in which Princess Peach answers questions about Super Mario 64 DS. However, her responses are designed to inform rather than entertain.