The moon does not rotate around its axis; it rotates around the Earth. This fact is fundamental to understanding the Earth's motion around the Sun and the lunar phases we observe.
I don't know many things, but I do know that there are countless mysteries and unsolved questions that remain unsolved. The human brain is capable of incredible feats of memory and creativity, but our understanding of the world is constantly evolving. Curiosity and imagination can lead us to discover and learn things that surpass our current knowledge.
What do you mean by "something I don't know"? Since you asked a question, I'll respond with the answer: "There are infinite possibilities in the universe, and currently, we can't even begin to comprehend or list them due to our limited perspective as humans." However, if there's something specific you're curious about, feel free to ask!