No, for two reasons. First, the fridge door has to be closed to keep the air temperature inside the fridge cool enough to keep the foods cold and safe. Second, leaving the fridge door open causes the refrigerator to run more, costing more energy and running up the electric or gas bill.
yes
Yes but leave the door open to prevent mould build-up
It can but dont leave your fridge open for too long!
If you have noticed the warm air blowing from behind your refrigerator, that is the heat that was in the air that is inside your refrigerator. If you leave the door open the air around the refrigerator will briefly feel cold, but it will warm back up and the food in the refrigerator will go bad.
They should be OK.
When you leave the door open, the cool air flows out, and the warm air flows in. This means that the fridge will have to work harder to keep the food at the same temperature.
If you have a refrigerator or a cooler by all means "Go for it", I do it all the time.
Cold air in the refrigerator escapes and is replaced by warm humid room air. This usually triggers the refrigerator mechanism to cool that air, if you leave the door open too long you can waste lots of electricity.
Probably not that much of a difference in the room temperature, just the fridge will be wasting power and food might spoil.
pull on the handle
No. The heat that is generated by cooling the inside is usually given off at the back of the refrigerator. If you leave the door open then everything will become room temperature.
Leave it closed as much as possible. It will keep the cold inside and help the food stay fresh longer.