Worldwide there are so many it is not sensible for anyone to type out a new list here!
For more information please click on the Related Questionbelow and then go into the further Related Questions and Related Links shown below the answer to that question.
it holds irregular shapes easily
Ground wire
The reason might be a voltage or amperage mismatch between the two devices. Plugs and receptacles are matched sets depending on the voltage and the amperage of the devices. The configurations are done in this manor to prevent the wrong voltages being applied to wrong plug in equipment.
Depends on the size of the wire in the extension cord. The 3 prong is just the hot, neutral, and ground.
German appliances don't have three pinned plugs. The standards are the "Schoko" plug, which is a two pin plug with contacts on the side as a ground connection and the "Euro plug which is a two pin plug without a ground connection. There are adapters available at most good electrical stores.
it holds irregular shapes easily
There are many types of three prong plugs through out the world. These three prong plugs are used for many different voltages and amperages. To answer the question, the world location or amperage and voltage should be stated from the equipments nameplate. This will give an indication of the plug that is in question.
Install an AFCI breaker on the circuit with the outlets you replace and you will be fine.
Ground wire
bacilli cocci spirilli
Its a plug which contains a pronged earth which is the 3rd prong, some other plugs contain only 2 prongs and a 'scratch earth' which is only slight visible, its basically the same concept only one is more visible.
No you can not you will need to replace the plug with a 4 prong the same as the style of your oven and change your breaker to the correct Amp for your style of 4 prong plug
South Africa uses 220-240V/50H 3-prong plugs that look like this: http://www.jjeac.com/UploadFiles/JJA-14%20South%20Africa%20plug.jpg
Disregard the neutral
depends on age. Its pre 97 change the plugs for the bosch type 3 prong. And add some engine additive.
If you're asking about UK three prong plugs - the earth cable is green and yellow, the live is brown and the negative is blue.
All three prong dryer cords should fit all three prong outlets. Dryer and stove plugs are different but as long as someone didn't use one in place of a dryer cord, there isn't a problem.