Mount Everest,also called Sagarmatha (Nepali: सगरमाथा meaning Head of the Sky) or Chomolungma, Qomolangma or Zhumulangma (in Tibetan: ཇོ་མོ་གླང་མ, in Chinese: 珠穆朗玛峰 Zhūmùlǎngmǎ Fēng) is the highest mountain on Earth, as measured by the height of its summit above sea level, which is 8,848 metres (29,029 ft). The mountain, which is part of the Himalaya range in High Asia, is located on the border between Sagarmatha Zone, Nepal, and Tibet, China. You can see nice pictures HERE.
K2 is the second-highest mountain on Earth (after Mount Everest). With a peak elevation of 8,611 metres (28,251 ft), K2 is part of the Karakoram segment of the Himalayan range, and is located on the border between Pakistan’s northern territories, and the Taxkorgan Tajik Autonomous County of Xinjiang, China. K2 is known as the Savage Mountain due to the difficulty of ascent and the fact that for every four people who reach the summit, one dies trying. Among the eight-thousanders, K2 has the third highest climbing mortality rate.
Kangchenjunga (Nepali:कञ्चनजङ्घा Kanchanjaŋghā) SewaLungma (Limbu language) is the third highest mountain in the world (after Mount Everest and K2), with an elevation of 8,586 metres (28,169 ft). Kangchenjunga translated means “The Five Treasures of Snows“, as it contains five peaks, four of them over 8,450 metres. The treasures represent the five repositories of god, which are gold, silver, gems, grain, and holy books. Kangchenjunga is also called Sewalungma in local Limbu language and considered sacred in Kirant religion.
Lhotse (in Nepal officially ल्होत्से, in China officially Lhozê; Tibetan in Wylie transliteration: lho rtse; Chinese: 洛子峰, Pinyin: Luòzǐ Fēng) is the fourth highest mountain on Earth (after Mount Everest, K2 and Kangchenjunga) and is connected to Everest via the South Col. In addition to the main summit at 8,516 metres above sea level, Lhotse Middle (East) is 8,414 metres and Lhotse Shar is 8,383 metres. It is located at the border between Tibet (China) and Khumbu (Nepal).
Makalu (in Nepal officially मकालु;in China officially Makaru; Chinese: 马卡鲁山, Pinyin: Mǎkǎlǔ Shān) is the fifth highest mountain in the world and is located 22 km (14 mi) east of Mount Everest, on the border between Nepal and China. One of the eight-thousanders, Makalu is an isolated peak whose shape is a four-sided pyramid. Makalu has two notable subsidiary peaks. Kangchungtse, or Makalu II, 7,678 m (25,190 ft), lies about 3 km (2 mi) north-northwest of the main summit. Rising about 5 km (3.1 mi) north-northeast of the main summit across a broad plateau, and connected to Kangchungtse by a narrow, 7,200 m saddle, is Chomo Lonzo, 7,804 m (25,604 ft).
Cho Oyu (or Qowowuyag; in Nepal चोयु, Tibetan in Wylie transliteration: jo bo dbu yag; Chinese: 卓奧有山, Pinyin: Zhuó’àoyǒu Shān) is the sixth highest mountain in the world. Cho Oyu lies in the Himalayas and is 20 km west of Mount Everest, at the border between China and Nepal. Cho Oyu means “Turquoise Goddess” in Tibetan. Cho Oyu was first attempted in 1952 by an expedition organised and financed by the Joint Himalayan Committee of Great Britain as preparation for an attempt on Mount Everest the following year. The expedition was led by Eric Shipton and included Tom Bourdillon, but technical difficulties at an ice cliff above 6,650m (21,820ft) proved beyond their abilities. (Today, these ice cliffs are normally ascended using fixed ropes.) The mountain was first climbed on October 19, 1954 via the north-west ridge by Herbert Tichy, Joseph Jöchler and Sherpa Pasang Dawa Lama of an Austrian expedition. Cho Oyu was the fifth 8000 metre peak to be climbed, after Annapurna in June 1950, Mount Everest in May 1953, Nanga Parbat in July 1953 and K2 in July 1954.
Dhaulagiri (धौलागिरी) is the seventh highest mountain in the world. It forms the eastern anchor of the Dhaulagiri Himal, a subrange of the Himalaya in the Dhawalagiri Zone of north central Nepal. It lies northwest of Pokhara, an important regional town and tourist center. Across the deep gorge of the Kali Gandaki to the east lies the Annapurna Himal, home to Annapurna I, one of the other eight-thousanders. Dhaulagiri means “White Mountain”. Next information here and here.