Top 10 Unsolved Mysteries in the World

10. Pollocks Twins

11 year old Joanna Pollock and 6 year old Jacqueline Pollock from Northumberland were killed in a car accident in 1957.  Their father believed in reincarnation and hoped that his daughters will be reborn again as his children. In 1958, the mother of the two dead sisters gave birth to twin daughters.  The twin sisters were named Jennifer Gillian. Then strange incidents started to happen to the family. The family moved away to live in a different place when their daughters were under six months. When they came back to their old home, their daughters were four years old; the twins recognized the previous home and school of their dead sisters.  Gillian knew about the car accident. She checked Jennifer's head and said this is where the car hit her.Jacqueline had a scar mark on her forehead above her right eye. Jennifer had an unusual white scar mark in the same place with the same shape. Jennifer had a red-brown mark on her hip like her sister Jacqueliene.The twins knew the names of the dolls of their deceased sisters.  Gillian liked combing her father's hair, even Joanna used to comb her father's hair

9. Dancing Mania

Dancing mania (also known as dancing plague, choreomania, St John's Dance and, historically, St. Vitus' Dance) was a social phenomenon that occurred primarily in mainland Europe between the 14th and 17th centuries. It involved groups of people dancing erratically, sometimes thousands at a time. The mania affected men, women, and children, who danced until they collapsed from exhaustion. One of the first major outbreaks was in Aachen, in the Holy Roman Empire, in 1374, and it quickly spread throughout Europe; one particularly notable outbreak occurred in Strasbourg in 1518, also in the Holy Roman Empire.Affecting thousands of people across several centuries, dancing mania was not an isolated event, and was well documented in contemporary reports. It was nevertheless poorly understood, and remedies were based on guesswork. Generally, musicians accompanied dancers, to help ward off the mania, but this tactic sometimes backfired by encouraging more to join in. There is no consensus among modern-day scholars as to the cause of dancing mania.The several theories proposed range from religious cults being behind the processions to people dancing to relieve themselves of stress and put the poverty of the period out of their minds. It is, however, thought to be as a mass psychogenic illness in which the occurrence of similar physical symptoms, with no known physical cause, affect a large group of people as a form of social influence.

8. Jack The Ripper

Jack the Ripper is the best known name given to an unidentified serial killer generally believed to have been active in the largely impoverished areas in and around the Whitechapel district of London in 1888. The name "Jack the Ripper" originated in a letterwritten by someone claiming to be the murderer that was disseminated in the media. The letter is widely believed to have been a hoax, and may have been written by journalists in an attempt to heighten interest in the story and increase their newspapers' circulation. The killer was called "the Whitechapel Murderer" as well as "Leather Apron" within the crime case files, as well as in contemporary journalistic accounts.Attacks ascribed to Jack the Ripper typically involved female prostitutes who lived and worked in the slums of the East End of Londonwhose throats were cut prior to abdominal mutilations. The removal of internal organs from at least three of the victims led to proposals that their killer had some anatomical or surgical knowledge. Rumours that the murders were connected intensified in September and October 1888, and letters were received by media outlets and Scotland Yard from a writer or writers purporting to be the murderer. The "From Hell" letter received by George Lusk of the Whitechapel Vigilance Committee included half of a preserved human kidney, purportedly taken from one of the victims. The public came increasingly to believe in a single serial killer known as "Jack the Ripper", mainly because of the extraordinarily brutal character of the murders, and because of media treatment of the events.Extensive newspaper coverage bestowed widespread and enduring international notoriety on the Ripper, and his legend solidified. A police investigation into a series of eleven brutal killings in Whitechapel up to 1891 was unable to connect all the killings conclusively to the murders of 1888. Five victims—Mary Ann Nichols, Annie Chapman, Elizabeth Stride, Catherine Eddowes, and Mary Jane Kelly—are known as the "canonical five" and their murders between 31 August and 9 November 1888 are often considered the most likely to be linked. The murders were never solved, and the legends surrounding them became a combination of genuine historical research, folklore, and pseudohistory. The term "ripperology" was coined to describe the study and analysis of the Ripper cases. There are now over one hundred theories about the Ripper's identity, and the murders have inspired many works of fiction.

7. Voynich Manuscript

The Voynich manuscript is an illustrated codex hand-written in an unknown writing system. The vellum on which it is written has been carbon-dated to the early 15th century (1404–1438), and it may have been composed in Northern Italy during the Italian Renaissance. The manuscript is named after Wilfrid Voynich, a Polish book dealer who purchased it in 1912.Some of the pages are missing, with around 240 still remaining. The text is written from left to right, and most of the pages have illustrations or diagrams.The Voynich manuscript has been studied by many professional and amateur cryptographers, including American and Britishcodebreakers from both World War I and World War II. No one has yet succeeded in deciphering the text, and it has become a famous case in the history of cryptography. The mystery of the meaning and origin of the manuscript has excited the popular imagination, making the manuscript the subject of novels and speculation. None of the many hypotheses proposed over the last hundred years has yet been independently verified.

6. Green Children

The legend of the green children of Woolpit concerns two children of unusual skin color who reportedly appeared in the village of Woolpitin Suffolk, England, some time in the 12th century, perhaps during the reign of King Stephen. The children, brother and sister, were of generally normal appearance except for the green color of their skin. They spoke in an unknown language, and the only food they would eat was beans. Eventually they learned to eat other food and lost their green pallor, but the boy was sickly and died soon after he and his sister were baptised. The girl adjusted to her new life, but she was considered to be "rather loose and wanton in her conduct". After she learned to speak English, the girl explained that she and her brother had come from Saint Martin's Land, a subterranean world inhabited by green people.The only near-contemporary accounts are contained in William of Newburgh's Historia rerum Anglicarum and Ralph of Coggeshall'sChronicum Anglicanum, written in about 1189 and 1220 respectively. Between then and their rediscovery in the mid-19th century, the green children seem to surface only in a passing mention in William Camden's Britannia in 1586, and in Bishop Francis Godwin's fantastical The Man in the Moone, in both of which William of Newburgh's account is cited.Two approaches have dominated explanations of the story of the green children: that it is a folktale describing an imaginary encounter with the inhabitants of another world, perhaps one beneath our feet or even extraterrestrial, or it is a garbled account of a historical event. The story was praised as an ideal fantasy by the English anarchist poet and critic Herbert Read in his English Prose Style, published in 1931. It provided the inspiration for his only novel, The Green Child, written in 1934.

5. Bermuda Triangle

The Bermuda Triangle, also known as the Devil's Triangle, is a loosely defined region in the western part of the NorthAtlantic Ocean, where a number of aircraft and ships are said to have disappeared under mysterious circumstances. According to the US Navy, the triangle does not exist, and the name is not recognized by the US Board on Geographic Names. Popular culture has attributed various disappearances to the paranormal or activity by extraterrestrial beings. Documented evidence indicates that a significant percentage of the incidents were spurious, inaccurately reported, or embellished by later authors.

4. Crop Circles 

A crop circle or crop formation is a pattern created by flattening a crop, usually a cereal. The term was first coined in the early nineteen-eighties by Colin Andrews.Crop circles have been described as all falling "within the range of the sort of thing done in hoaxes" by Taner Edis, professor of physics at Truman State University. Although obscure natural causes or alien origins of crop circles are suggested by fringe theorists, there is no scientific evidence for such explanations, and human causes are consistent for all crop circles. A commentary in The Guardian noted that "it is still open to dispute whether some are caused by natural phenomena or all created by human hand."The number of crop circles has substantially increased from the 1970s to current times. There has been little scientific study of them. Circles in the United Kingdom are not spread randomly across the landscape but appear near roads, areas of medium to dense population and cultural heritage monuments, such as Stonehenge or Avebury. In 1991, two hoaxers, Bower and Chorley, made disputed claims to have created many circles throughout England after one of their circles was described by a circle investigator as impossible to be made by human hand.Formations are usually created overnight, although some are reported to have appeared during the day. In contrast to crop circles or crop formations, archaeological remains can cause cropmarks in the fields in the shapes of circles and squares, but they do not appear overnight, and they are always in the same places every year.

3. Ghost Ship of Northumberland Strait

The Ghost Ship of Northumberland Strait is a ghost ship that has been reported as sailing ablaze within the Northumberland Strait, the body of water that separates Prince Edward Island from Nova Scotia and New Brunswick in eastern Canada. Numerous sightings of the ship have been reported for over 220 years. The Ghost Ship of Northumberland Strait is described as a beautifulschoonerthat has three masts (sometimes four masts, as reports vary) with pure white sails, all of which become completely engulfed in flames as onlookers watch.Sightings have occurred throughout the seasons, but seem to be more prevalent from September to November.These visions are also apparent before a northeast wind, and folklore has it that this brilliant ghost ship is a forewarning of a storm.There never seems to be a predetermined place for where the ship will appear; sightings tend to happen when least expected.Sometimes upon seeing the burning ship, mariners have attempted to rescue the crew aboard. One of the more famous rescue attempts took place in Charlottetown Harbour about 1900. A group of sailors boarded a small rowboat and raced toward the flaming ship to rescue the troubled crew. During their struggle to reach the distressed vessel, the phantom ship completely vanished. A thorough search was immediately carried out by divers, but no shipwreck was found.

2. Red Rain in Kerala

The Kerala red rain phenomenon was a blood rain event that occurred from 25 July to 23 September 2001, when heavy downpours of red-coloured rain fell sporadically on the southern Indian state of Kerala, staining clothes pink. Yellow, green, and black rain was also reported. Coloured rain was also reported in Kerala in 1896 and several times since, most recently in June 2012, and from 15 November 2012 to 27 December 2012 in eastern and north-central provinces of Sri Lanka.Following a light microscopy examination in 2001, it was initially thought that the rains were coloured by fallout from a hypothetical meteorburst, but a study commissioned by the Government of India concluded that the rains had been coloured by airborne spores from a locally prolific terrestrial green alga from the genus Trentepohlia. An international team later identified the exact species as Trentepohlia annulata.

1. Kentucky meat shower

The Kentucky meat shower was an incident where what appeared to be flakes of red meat fell from the sky in a 100-by-50-yard (91 by 46 m) area near Rankin, Bath County,Kentucky, for a period of several minutes on March 3, 1876. Most of the pieces were approximately 5 centimetres (2.0 in) square; at least one was 10 centimetres (3.9 in) square. The phenomenon was reported by Scientific American, the New York Times, and several other publications at the time. The meat appeared to bebeef, but according to the first report inScientific American, "two gentlemen" who tasted it judged it to bemuttonorvenisonB.F. Ellington, a local hunter, identified it as bear meat.Initially, the "meat" was identified by a Mr. Leopold Brandeis writing in the Sanitarian as nostoc. When Brandeis passed the meat sample to the Newark Scientific Association for further analysis, this led to a letter from Dr. Allan McLane Hamilton appearing in the publication Medical Record stating that the meat had been identified as lung tissue from either a horse or a human infant, "the structure of the organ in these two cases being almost identical." The makeup of this sample was backed up by further analysis, with two samples of the meat being identified as lung tissue, three as muscle, and two as cartilage.