Somebody else was doing this (but with 10) and it went well, so I may as well, too. My questions will be a bit bigger, though. Answer in the comments.
1. Zeno used paradoxes to argue that motion doesn't exist, including his arrow paradox. "It works by taking a snapshot of an arrow at a point (either in space or in time) in its flight. At that point, and at every other, the arrow is motionless. If there is no point, spatially or temporally, at which the arrow is moving, though, then the arrow is motionless. Contrary to appearances, an arrow in flight cannot move." [source: http://www.logicalparadoxes.info/arrow/] Does motion exist? If yes, how is Zeno's paradox solved?
2. Without resorting to circular reasoning, how do you know you can reason correctly?
3. There are two theories of time: A-theory states that the present is objectively present, and time actually progresses. B-theory states that all time is layer out on some plane and our motion through it is an illusion of the human consciousness. Which is true and why?
4. Without answering "because it's moral," why should a person be moral?
5. Prove that a mind (soul) does or doesn't exist.
I have my own answers to these, but I want to see what others write. Good luck!