You can not compare religous faith to existence they are two different things
If we knew the answers to those existential questions, we wouldn't have a forum like this, and you and I would not be debating what the truth is...
faith is not truth, you can have faith in things that don't exist,children have faith that santa clause will bring them something, something bad or something good - or you can have faith in things that defy the universe and the reality of the majority of people - such as creationism
But that is faith, and it is not blind..
do you even know what faith is? it doesn't seem like you do, try using the definition that everyone else uses
faith is in things unseen, god remains unseen