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محمد حيدري

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418. Michael Shawsenna 3
419. Ine Troelstra 3
420. محمد حيدري 3
421. Ricardo Cardona 3
422. Aja Romporas 3
last 3 solved tasks
Solve Mathematical Puzzle: 4, 5, 6, 8, 11, 16, ?, 37, 58, 92
If 5119b + 22acb = 7b276 find number abc. Multiple solutions may exist.
MATH PUZZLE: Can you replace the question mark with a number?

Nikolai Przhevalsky

Died 20 Oct 1888 at age 49 (born 31 Mar 1839).Russian explorer who discovered a wild camel and a primitive horse (named Przhevalsky's horse), during expeditions in the mountain regions between Tibet and Mongolia, collecting both plants and animals. In 1881, Przewalski made an official statement describing the horse: its appearance, characteristics and remote habitat. They lived in herds of 5 to 15 animals led by a stallion. He noted that they were alert and very shy, with acute hearing, very good eyesight and a highly developed sense of smell. They seemed to prefer saline soils and could survive for a long time without water. On his fifth expedition, while investigating Lake Issyk Kul's shores, he died after drinking typhoid-infected water. By 1969, the species was thought extinct in the wild. By breeding the few surviving in zoos, some have been reintroduced to the wild.«

Invisible man

Nurse: "The invisible man is here for his appointment."
Doctor: "Tell him I'm sorry I can't see him right now."
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