They are not major scientific problems. The problems you mentioned have been shown to be false by many scientific fields of investigation including geology and genetics. The earth is 4.5 billion years old, life on earth started about 3.4 billion years ago. Mammals such as you and I have been around for about 300 million years. People of the species Homo Sapian have been around for about 200,000 years. The ancient books were written by pre-scientific people no more than a few thousand years ago. This is all proven scientific fact. If you want to delude yourself into thinking otherwise, go right ahead as the fundamental truth about the universe doesn’t changes because YOU believe otherwise.