QUES: The history of a unified Tibet begins with the rule of Songtsan Gampo (604650 CE), who united parts of the Yarlung River Valley and founded the Tibetan Empire. He also brought in many reforms, and Tibetan power spread rapidly, creating a large and powerful empire. It is traditionally considered that his first wife was the Princess of Nepal, Bhrikuti, and that she played a great role in the establishment of Buddhism in Tibet. In 640 he married Princess Wencheng, the niece of the powerful Chinese emperor Taizong of Tang China.

Who ruled Tibet from 640-650 CE?
What is the answer?
ANS: unanswerable
QUES: Phil Skinner played a key role in 20th century development of the mandolin movement in Australia, and was awarded an MBE in 1979 for services to music and the community. He was born Harry Skinner in Sydney in 1903 and started learning music at age 10 when his uncle tutored him on the banjo. Skinner began teaching part-time at age 18, until the Great Depression forced him to begin teaching full-time and learn a broader range of instruments. Skinner founded the Sydney Mandolin Orchestra, the oldest surviving mandolin orchestra in Australia.

What was Phil Skinner's birth name?
What is the answer?
ANS: Harry Skinner
QUES: The population geneticist Sewall Wright developed one way of measuring genetic differences between populations known as the Fixation index, which is often abbreviated to FST. This statistic is often used in taxonomy to compare differences between any two given populations by measuring the genetic differences among and between populations for individual genes, or for many genes simultaneously. It is often stated that the fixation index for humans is about 0.15. This translates to an estimated 85% of the variation measured in the overall human population is found within individuals of the same population, and about 15% of the variation occurs between populations. These estimates imply that any two individuals from different populations are almost as likely to be more similar to each other than either is to a member of their own group. Richard Lewontin, who affirmed these ratios, thus concluded neither "race" nor "subspecies" were appropriate or useful ways to describe human populations. However, others have noticed that group variation was relatively similar to the variation observed in other mammalian species.

What was Wright's method known as?
What is the answer?
ANS:
the Fixation index