Anyone of these would be a good topic for an entire thread, knitofreak. Why don't you look around to see whether these have been discussed before? If not, or if the discussions don't address your concerns, you can start a new thread on the topic.
This thread is about whether there is credible evidence that dinosaurs and humans existed at the same time. It would be way, way off-topic to give the detailed answers that each of your questions deserves.
"Religion is the best business to be in. It's the only one where the customers blame themselves for product failure."
-- Ellis Weiner (quoted on the NAiG message board)