Some sources (I'm thinking especially of the document "101 Clear Contradictions" by a Muslim writer) include total non-problems such as the following. These verses are 2 Kings 24:8 and 2 Chronicles 36:9 respectively:
This "contradiction" is just nothing. One of the texts is rounding, and the other isn't. There are a few other "contradictions" that fall into the same category. Whether you're an atheist, a Muslim, a non-infallibilist Christian, or whatever, don't let your own side down by using such weak arguments.