I don't know about the male side, but for female age distinctions, it is as follows,
Youngest Mother - 5 years old
Youngest Grandmother - 23 years old
Youngest Great Grandmother - 42 years old
Youngest Great Great Grandmother - 72 years old
Youngest Great Great Great Grandmother (or the only one that was alive at the time) - 112 years old
The youngest couple to get married were 9 year old Jayla and 7 year old Jose. http://www.citehr.com/209358-worlds-youngest-couple.html here is a link of their story.
i dunno but ill look it up EDIT: a 14 yr old
The worlds youngest teacher is zero.
DJ Baby Chino is the worlds youngest dj. He's only 9 years old!
Armajeep Sada is generally acknowledged as the world's youngest serial killer. In 2007, at the age of 8, he was discovered to have killed three people - all of them less than one year old.
Wayne roony (oldest) youngest ( cristiano ronalfo)
Possibly Mark Zuckerburg
The world's youngest biome is the Tundra from what i heard hope this helped at least a little :/
The worlds youngest island is Surtsey, one of the islands in Iceland. After a volcanic eruption in 1963. after the eruption subsided in 1967, erosion had caused it to become smaller in size.
the worlds youngest man is impossible because baby boys are being born every second of our lives and days.
a 10 year old http://www.unsolvedmysteries.com/usm327288.html
macualy brown