Weird shapes and lines on solid shapes and low light on cycles I'm new to blender and I have been using blender cycles the lighting is weird and low in my render and another issue is that my shaped are glitching out and showing random lines and shapes on solid objects. I thought It was connecting all vertices but I tested it by remaking the object but no luck.
From your picture, the shape glitching looks like Z-fighting. This happens when you have two objects (or faces of the same object) that occupy the same space. If it is Z-fighting, it will probably flicker when you move around in the viewport.

To fix it, try moving the object around. You can also try going into Edit mode, selecting all the vertices, and pressing W > Remove Doubles. (This is also good to do just on general principle—even just canceling a Shift+D will create duplicate vertices in the same spot.)

I don't know about the lighting issue; can you post a picture of the rendered view so I can see what it looks like?