The incredible expanding day: It started as 1000 years. Then when it became apparent that this was just stupid, it went to 7000 years. This was the science that I was raised on. Then when it became apparent that this too was just stupid, it became "indeterminate". The 7000 years has never actually been altered, just quietly abandoned.
As far as I can remember, they have never said that the earth was a specific age, because the creative days begin with the heavens and earth already in place. However, the earth was formless and void at the beginning of the first creative day. All living things, including plants and animals were shoehorned into those tiny days.
As dinosaurs were explained to me, (and this was just someone's conjecture), during the early part of creation, the earth was lush and tropical. God created these huge creatures to serve as bulldozers, making room for smaller animals. Then, when they were no longer needed for God's purpose, they were allowed to die off. I was told that dinosaurs existed before humans, but they were no where near as old as science says they are, because every JW knows that radio carbon dating doesn't work, due to the different conditions existing before the flood.
Yes, it was like living in a cartoon.