"The Bible says Earth existed before the Sun." What evidence is there with the big bang theory that the sun was formed before the planets? The Bible never stated that the planet had any life on it before the sun. God did create light before He brought any life to the planet. It might not have been until later that He concentrated that light into the sun to create the daytime, night-time, and the different seasons, but there is nothing to state that the light He created on day 2 couldn't support life on the planet. So like I said, unless you can provide evidence that shows the exact process of how everything was created thru the big bang, you cannot state a lifeless planet couldn't have formed before the formation of the sun or light. BTW, this would require knowing the first stages of the big bang, knowing the exact cause and conditions, and what the possible singularity was, all which science does not know.
"It says a house can get leprosy." The bacteria for leprosy, like any other bacteria, has evolved over time. The bacteria once existed outside of the human body before changing to exist only within the human body, with the exception of a couple types of animals. So it is possible for the bacteria for leprosy to grow on rocks, which is a common material used for building homes then, if the conditions were right. So yes it was possible for a house to have leprosy, even though it isn't able to today.
"It says the sun stood still in the sky for a whole day." Doing a simple search for what would happen if the sun stopped, if the sun stopped shinning for a couple weeks, we would all be dead. However for only a day, the temperature of the earth would only drop by 2.5K, but this would be if the sun completely stopped shinning for a day. That isn't the case here as the sun was still shinning. As this was the only time this event ever happened and the only known account of it happening, there is not enough information to know exactly what took place here. Now I could say that scientifically the answer for how this took place hasn't been discovered yet, just like the argument is used for the beginning and missing stages of big bang, abiogenesis, and evolution. But I know you will refuse to accept that as a possibility because the event is based off of something that was accounted for in religious text and not as a scientific discovery.
**to be continued**