The Big Bang...
I have some issues with this idea.

Everything came from one lump/pile/whatever-the-hell-you-want-to-call-it of matter. That for some unknown reason decided at one point to cease being the lump it was and explode into the universe...From my understanding of Physics something would have had to have come along and kicked it or something to make it do that because its not just going to find energy to make a 'big bang' just chilling there in the middle of nothingness.

The fact that we had a lump of stuff in the middle of infinite nothing is another thing seems very odd that there was just one lump of stuff in the middle of nothing...how the hell did it get there in the first place?

This being the information I've been given about the whole thing the only logical heads or tails I can make out of it is this:

Our universe must be the bottom of a black hole.
The black hole sucked in all this crap from somewhere else distorting space time and forcing it into infinite compression. So then this black hole died/dried up/stopped sucking(Supposing there's an end to a black hole's lifespan) and the force keeping all this matter crushed together went away so all the matter exploded making the big bang...

Could be fuzzy logic, but today isn't one of those days when I'm putting much stock in either logic or science