Is it not possible that I'm the only real person and everyone else is there to allow me to run my life?

Is it not possible that the only things that actually happen in the universe are those that I see because nothing else exists until I can see it and everything ceases to exist the moment I cant see it?

If a tree falls in a forest and nobody is there to hear it does it still make a noise?

If a man says something and there is no woman to hear it is he still automatically wrong?