What would you ask a Muslim? How would you defend your faith?

I would offer that it may not be a good idea to engage in theological debates, you will undoubtably run into walls. Instead, take the good. I worked for one year with eighty muslims in a muslim country. We ate together, spoke together, trained together, and worked under dangerous conditions together. I trusted each and every one of them without reserve. Let me caveat. They were not devout muslims except for a handful. They had the same vices that non-practicing christians have. But the base values I have found are the same. Mutual respect was the name of the game. They knew I was a christian and respected the values I believed in, making our two faiths a bond between us, not a seperation. I freely admit that I had prejudices against muslims prior to meeting any and working with them. Not any more. I never sought to engage in a discussion of our differences. Just find the common ground, it is there.