Antarctica = ice wall.
Actually there, big guy, Antarctica doesn't go all the way around the world.
It's not. The only part about the conspiracy involves this: the world is flat (via personal observation), and the government is saying that it is flat. So, obviously, the government is lying. Duh.
Ok, so according to you, you think that the earth is flat, and the government is saying it is flat, so they're lying, meaning you're lying, you lost me on that one.
Have you ever thought something was right and then been proven wrong? Have you always conceded your point, therefore admitting to your mistake, and making yourself appear to be of less intelligence than the previous notion?
Haha, so you think that the reason EVERYONE beleives that the earth is a sphere, is because all of the governments of the world hide this "valuable" information because they are .............EMBARRASSED!!! That's a sad excuse right there. The government learns from previous mistakes all the time, that's why we take history class, that's why we have ammendmants. The 1st 10 were made soley because the founding fathers were wrong in finishing the constitution, so they added those to change it. In fact our constitution that we have today, USA if you have no idea what I'm talking about, wasn't even the 1st. We had some Articles of Confederation, but it sucked, so they changed it and moved on. They weren't "too embarrassed" to admit it, that's pathetic, haha.
Um, no, that'd mean that the surface of the Earth would be a plane, as opposed to a curved surface of a sphere. Take some geometry.
No, flat means 2D, only 2 dimensions. A square is flat, a circle is flat, and (according to you) the earth is flat.
We're using the word, so you have to conform to our definition.
Well, you're using my language of choice, so confine to what the words themselves mean, and don't make up definitions for yourself.
Pictures aren't proof, or else you'd have to believe in:
UFO's -

Do you know what UFO means? I'll tell you, unidentified flying object, so, try and follow along, if you look up in the sky and see something, whatever it is, and don't know what it is, then it's unidentified, obviously flying, if you're looking straight up at it and it's not touching the ground, and it's an object because well, that's a very very vague word. So, UFO's do exist, Einstein.
Jackalopes -
How stupid are you?!?!?!?! That thing is obviously stuffed!!!! It's fake!!! Doesn't take a FE'er to figure that out!!!
Chupacabras -

That shows nothing!!! That (could be) a doll someone made and put on a bed sheet, and then took up close pics of it, then said it was 5 feet!!!
Vampires -

Werewolves -

etc.
These 2 are pretty obvious, it's called masks and makeup artists, don't be stupid.
Well, I addressed all your points, who's next? 8-)