Here's one for the believers. Don't get frightened. This is going to be easy. I'm keeping with the had-this-conversation-a-thousand-times-gonna-have-it-one-more-time theme we have going here. So you've all heard this before, and I just want to make you all repeat the same old answer again. Here goes:
The argument against omnipotence:
Can god make a rock so bid even he can't lift it? Can he make a cup of coffee so hot even he can't sip it? Can he make a woman so hot even he can't resist her?
I've heard all kinds of explanations for this. What's yours?