Hemisphere jokes

You have two parts of [your] brain, "left" and "right". In the left side, there's nothing right. In the right side, there's nothing left.

Canada United States Mexico

C U M

What goes up but never comes down?

Water in Australia.

You know why I have so low IQ? It's because the left side of my brain gets nothing right, and the right side of my brain has nothing left.