Some context: Oscar Gutierrez (born December 11, 1974), better known by his ring name Rey Mysterio Jr. or simply Rey Mysterio (Spanish for "King Mystery"), is an American professional wrestler who is currently wrestling on the independent circuit. Mysterio is best known for his appearances with Extreme Championship Wrestling, World Championship Wrestling and WWE between 1995 and 2015, becoming a three-time world champion in the latter. Widely regarded as the greatest cruiserweight wrestler of all time,, Mysterio is known for his high-flying Lucha libre wrestling style, which is credited with having helped kick-start the emergence of cruiserweight wrestling in the United States in the mid-1990s. Championships held by Mysterio over the course of his career include WWE's World Heavyweight Championship, the WWE Championship, WCW/WWE Cruiserweight Championship, WCW World Tag Team Championship, WCW Cruiserweight Tag Team Championship, WWC World Junior Heavyweight Championship, WWE Tag Team Championship, and WWE Intercontinental Championship.
In 1999, after the two factions of nWo reformed, they demanded that the LWO disband. Mysterio refused to take off his LWO colors and was attacked by the nWo as a result. This led to a match at SuperBrawl IX where Mysterio and tag partner Konnan lost a "Hair vs. Mask match" against Kevin Nash and Scott Hall, forcing Mysterio to remove his mask. After the match, he phoned his uncle to tell him the news. Mysterio has publicly expressed his disappointment over being unmasked:  Mysterio later became a "giant killer" by defeating large opponents such as Kevin Nash, Bam Bam Bigelow, and Scott Norton. He faced Nash at Uncensored in a match where Lex Luger interfered and helped Nash in winning the match. Although he participated in several notable matches with some of the heavyweight top card wrestlers, it was made very clear to him that he would never receive a push to become a main eventer. This was due to Eric Bischoff utilizing cruiserweights as alternative, mid-card entertainment as opposed to the more conventional style that led WCW programming.  The next night on the March 15 Nitro, he defeated Billy Kidman to win his fifth Cruiserweight Championship. On the March 22 Spring Breakout episode of Nitro, Mysterio got his first shot at the WCW World Heavyweight Championship against champion Ric Flair when the names of (allegedly) nearly everyone in the company were put into a hat and a lottery was held. El Dandy was the lottery winner, but he was injured, and Mysterio took the shot instead. The match ended with a disqualification win for Flair, even though Arn Anderson's interference on Flair's behalf should have theoretically disqualified Flair. The following week, Mysterio and Kidman teamed with each other and defeated Flair's Four Horsemen stablemates Chris Benoit and Dean Malenko to win the WCW World Tag Team Championship, making Mysterio a double champion. Mysterio successfully defended his Cruiserweight Championship against his tag team partner Kidman at Spring Stampede before losing the title on the April 19 episode of Nitro to Psicosis in a Fatal Four-Way match that also involved Juventud Guerrera and Blitzkrieg. On the following episode of Nitro, he defeated Psicosis to win his fifth Cruiserweight Championship. At Slamboree, Mysterio and Kidman lost the World Tag Team titles to Raven and Perry Saturn in a Triangle match, also involving former champions Benoit and Malenko.
Did he lose any others?
A: 
Some context: Hasan ibn Ali ibn Muhammad (c. 846 - 874) was the 11th Imam of Twelver Shia Islam, after his father Ali al-Hadi. He was also called Abu Muhammad and Ibn al-Ridha. Because Samarra, the city where he lived, was a garrison town, he is generally known as al-Askari (Askar is the word for military in Arabic). Al-Askari married Narjis Khatun and was kept under house arrest or in prison for most of his life, until, according to some Shia sources, he was poisoned at the age of 28 on the orders of the Abbasid caliph Al-Mu'tamid and was buried in Samarra.
Hasan al-Askari was born during a period when his father Ali al-Hadi, the tenth Imam, was suspected of being involved in a conspiracy against the Caliph Al-Mutawakkil. There is doubt as to whether al-Askari was born in Medina or Samarra. According to authentic shia hadith he was born in Medina on the 8th of Rabiul Akhar 232 Hijri (4 December 846 AD) and died in Samarrah Iraq on the 8th of Rabiul Awwal 260 Hijri (4 January 874) aged 28. The period of his imamate was 6 years. He was taken along with his family to Samarra in the year 230, 231 or 232 A.H., and was kept there under house arrest. In Samarra, al-Askari spent most of his time reading the Quran and the Sharia. According to Donaldson, al-Askari must also have studied languages, for in later years it was known that he could speak Hindi with the pilgrims from India, Turkish with the Turks, and Persian with the Persians. According to Shia accounts, however, it is part of the divine knowledge given to all Imams to be able to speak all human languages.  It is said that even as a child, al-Askari was endowed with divine knowledge. One day a man passed by him, and saw that he was crying. The man told him he would buy a toy that he might play with. "No!" said al-Askari, "We have not been created for play." The man was amazed at this answer and said, "Then, what for have we been created?" "For knowledge and worship." answered the child. The man said "Where have you got this from?" Al-Askari said, "From the saying of God, Did you then think that We had created you in vain." The man was confused, so he said, "What has happened to you while you are guiltless, little child?" al-Askari said, "Be away from me! I have seen my mother set fire to big pieces of firewood, but fire is not lit except with small pieces, and I fear that I shall be from the small pieces of the firewood of the Hell."  Al-Askari's mother, as in the case of the majority of The Twelve Imams, was a slave girl who was honoured after bearing children with the title Umm walad (mother of offspring). Her given name was Hadith, though some say she was called Susan, Ghazala, Salil, or Haribta. Al-Askari had other brothers, and among them was Ja'far who was also known as Ja'far al-Zaki or Jaffar-us-Sani. His other brother was Husayn, and together he and al-Askari were known as "as-Sibtayn", after their two grandfathers Hasan and Husayn, who were also called as-Sibtayn.
Did he receive any education or religious training?
A:
was kept there under house arrest. In Samarra, al-Askari spent most of his time reading the Quran and the Sharia.