TASK DEFINITION: In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
PROBLEM: The Old Kingdom, in ancient Egyptian history, is the period in the third millennium (c. 2686 -- 2181 BC) also known as the' Age of the Pyramids' or' Age of the Pyramid Builders' as it includes the great 4th Dynasty when King Sneferu perfected the art of pyramid building and the pyramids of Giza were constructed under the kings Khufu, Khafre and Menkaure. Egypt attained its first continuous peak of civilization -- the first of three so-called 'Kingdom' periods (followed by the Middle Kingdom and New Kingdom) which mark the high points of civilization in the lower Nile Valley.

SOLUTION: how long did the old kingdom period of egyptian civilization last

PROBLEM: South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded on the south by 2,798 kilometres (1,739 mi) of coastline of Southern Africa stretching along the South Atlantic and Indian Oceans; on the north by the neighbouring countries of Namibia, Botswana, and Zimbabwe; and on the east and northeast by Mozambique and Swaziland; and surrounds the kingdom of Lesotho. South Africa is the 25th-largest country in the world by land area, with close to 56 million people, is the world's 24th-most populous nation and the largest in Southern Africa. It is the southernmost country on the mainland of the Old World or the Eastern Hemisphere. About 80 percent of South Africans are of Sub-Saharan African ancestry, divided among a variety of ethnic groups speaking different African languages, nine of which have official status. The remaining population consists of Africa's largest communities of European (white), Asian (Indian), and multiracial (coloured) ancestry.

SOLUTION: where is south africa located on a map

PROBLEM: The mid-ocean ridges of the world are connected and form the Ocean Ridge, a single global mid-oceanic ridge system that is part of every ocean, making it the longest mountain range in the world. The continuous mountain range is 65,000 km (40,400 mi) long (several times longer than the Andes, the longest continental mountain range), and the total length of the oceanic ridge system is 80,000 km (49,700 mi) long.

SOLUTION:
what is the extent of the mid ocean ridge system