Sky is blue.
Earth is flat. Prove me wrong.

OMG it is flag thanks for enlightening me!
Yes, it is all a hoax. During the Cold War, both the US and the Soviet Union faked their space missions in studios. They just expected the Earth to be round, and at this point they do not want to reveal the truth so that they can continue to have an excuse to create taxes to fund "space travel." Also, the civilians would start an uproar if they find out that they were lied to.

Are satellites fake too?
Yes, they cannot exist with a flat earth. Satellite radio and GPS really have their signals coming from right here on Earth.

So the earth doesn't rotate? The sun just goes around the earth in 24 hours? What's on the other side of the earth? Dinosaurs maybe?

So the earth doesn't rotate? The sun just goes around the earth in 24 hours? What's on the other side of the earth? Dinosaurs maybe?
The sun and the moon are fixed around the north pole and revolve. The sun completes a full cycle in 24 hours. During the northern hemisphere's summer, it is further north and revolves more slowly than it usually does. During the northern hemisphere's winter, it is further south on the earth and revolves more quickly to compensate for the increased distance that it must travel. It may be impossible to go onto the bottom side of the earth because there is no gravity; the earth just accelerates upward.

Wow! What if earth goes all the way to heaven!! Wait...what if the earth has already passed heaven? Like bzillions of years ago? Wait a minute...when we bury people in the ground do they fall to heaven?

Wow! What if earth goes all the way to heaven!! Wait...what if the earth has already passed heaven? Like bzillions of years ago? Wait a minute...when we bury people in the ground do they fall to heaven?
Heaven is not necessarily above Earth.

Well not anymore probably. Ya' know, finding out all this stuff makes me think that maybe everything is fake, like my 80 proof gin maybe. Maybe it's not 80 proof, maybe it's a billion proof!

Looks pretty flat to me. It depends on what kind of camera you use; some cameras have a fish eye lens that distorts light and makes things appear to be curved.
For example:

Take a look this Red Bull promo that clearly exaggerates a nonexistent curvature. If you take a look out the window, you can see that there is no curvature.
Here is reality.
Here is an introduction: http://wiki.tfes.org/FAQ.