I have never been interested enough to look for inconsistenices, as I don't believe any of it. It makes no difference to me if people fo though, and if it gives them purpose and menaing then that's all to the good. But a quick google shows many inconsistencies, so it's surprising that someone who does believe hasn't picked up at least a few. Here's a sample:
The sabbath is often portrayed as a day of rest, yet it was also when people were commanded to cary the ark around Jericho. Somewhat negating it's purpose as a day of rest.
There are contradictions in genesis about the flood, with 8.4 having the ark rested on the mountains of Ararat in the 7th month (the 40 days and 40 nights) but 8.5 not having the mountains visible until the 10th month
There are even inconsistencies around the resurrection; who arrived at the tomb first? Matthew says Mary Magdelene and Mary mother of James; Mark has those two plus Salome, Luke then adds Joanna and John only mentions Mary.
And most importantly for this thread, for atheists and believers, and for the Mumsnet business model in general, proverb 26.4 advises not answering a fool, whereas 26.5 suggets it is better to answer a fool :)
Thats before we come to the glaring factual inaccuracies, with Genesis 1 & 2 have god creating the universe and earth, followed by the creation of humans and creatures over a period of a week. Or is it 6 days, as it took a whole day to create the universe, including earth? Yet there is plenty of geological, astronomical and scientific evidence that proves this to be wrong.