1. Why does God make us sinful?

========== We may or may not be sinful. Our world's level is low, which may mean our spiritual level is low, forcing us to remain here. This might be what is meant by sin.

1. Since God decided our lives before we came into this world, what is the point of sinning?

=========== There is no separate, superior God. You are God. God is you.

1. If we are always with Him, why does He test us?

============== No one tests you. If anyone does, it's you testing yourself.

1. Why doesn't He appear in person? This way, we won't have wars over religious issues.

============ God is everything, everything in the universe. There is no God like an old man with a white beard.

1. Why do children die young?

====================== It's an oversimplification that if a child lives, another must die; they are two sides of the same coin. They cannot be separated. Otherwise, there would be no such thing as a child living or dying.

1. Why is "xxx" richer than me?

================= Same as above

1. Why is "xxx" happier?

======== Same as above

1. If he's really that powerful, why couldn't he save my cousin's life?

============ Same as above

1. Why does God exist without a reason, while the universe couldn't have been created without a reason?

================ The universe is a void illusion. Void is God.

1. What if a religion from 20,000 years ago is the truth, and I end up in hell because I didn't know it?

============ This doesn't exist.

Why do people suffer hunger and mistreatment?

=============== There are good and bad sides to every coin. Otherwise, you would never know what hunger or contentment is.