What questions should a comprehensive philosophy answer?

I've been dicking around with philosophy for a while and haven't come across any books or philosophers who encompass what I believe. I want to write an e-book (distributed under a CC license) trying answer some of the basic questions but I'm curious to see what others are asking. Here are a few of the ones important to me:

• Does free will exist?
• What is happiness?
• Should I be afraid of death?
• What is God, and why should I care?
• How do I know the things I do?
• What am I?
• What is love?

Baby don't hurt me.