Is there free will?
Yes. Otherwise, I couldn't decide to write this.
What happens after death?
All of the humans are reincarnated as insects, all of the insects are reincarnated as humans, and no one remembers their past life.
Who or what is God?
God is the energy in all living things that allows something as crazy as the human race and consciousness to exist.
What is the origin of evil?
Selfishness-- people wanting something that benefits themselves, without being able to understand someone else's wants, and not being able to compromise on that discrepancy
How do you find happiness?
Doing what puts you in flow on a day to day basis, feeling like your mind is challenged, surrounding yourself with good people, and having a balance of what your time is spent on.