Normally, no. If you are using an actual air conditioner, open windows and doors simply allow for more air transfer to and from the outside, forcing the unit to run more, wasting energy. However, if you are using an evaporative cooling unit (otherwise known as a "swamp cooler"), you might be able to get more air to flow through the unit by having **some** (not ALL) other windows open. Evaporative coolers tend to put a lot of humidity into the air, which is fine in drier climates, but not so good in, say, the eastern half of the US.
no
Fumes from the chemicals can not escape the room if the windows and doors are shut, and are at times toxic.
Closed! If you leave the windows open all the cool air will go out the windows, and your house won't get cool.
Through open windows, doors, etc.
it means you are leaving the doors and windows open
Too many variables to answer this one accurately. Outside temperature, wind chill, general infiltration, other doors/windows open, efficiency of heating/air conditioning unit etc etc.
through open doors, screen doors, windows, and from some animals
By leaving your windows or doors open bad isolation: your roof doors places like that
In
They leave doors open so as to welcome Goddess Laxmi. They lit lamps to attract the Goddess.
Maybe you held down the unlock button, this triggers all windows to open?
Only if you want it to get wet inside.