Need a wiring diagram showing how to wire 2 lights controlled by a single switch where the power comes in to the switch box.

Power into series of lights controlled by switch at end of run. What wires do I need? 12-2 will handle all of this somehow? Power ----> light fixture ----> light fixture ----> light fixture ---> switch Do I need 12-3 wire between the light fixtures? Or ?

I have a switch box with power to it and wire going to a light to the left out of the switch box and a wire going to outlets to the right out of the switch box. How do I wire the switch to make both the light and the outlets work properly?

How do I wire 6 recessed lights to 1 dimmer switch with 12-3 power wire source and 12-2 to between the 6 lights and then using 12-2 witing to the single pole switch?--need your help please

There are 3 lights connected, 2 in one room and the third at the bottom of the stairs. There is a 3-way at the top of the stairs and another in the room with the 2 lights. This guy would like to also be able to switch off just the 3rd light at the bottom of the stairs. I did not dig into this too...