Solid white lines are "Channelization" lines, meant to guide traffic as in an off ramp. To the best of my knowledge the only time they have legal ramifications is when posted, say in a construction zone ie "Stay in Lane".
Solid yellow lines are "Division" lines, meant to divide traffic (direction typically) and have legal ramifications.
Division and Channelization lines are 8" wide whereas normal "skip" lines are 6" wide.
Spacing of skip lines is 10' line, 40' space to the next line. Skip lines are for lane delineation and are white in a multi-lane road (one direction)and yellow on a two way road.

Pick up a copy of the MUTCD (Manual of Uniform Traffic Control Devices).
It will answer all your questions. It is also better than counting sheep when you can't sleep.