QUES: Q: What group was defeated at the Battle of Lechfeld?
A: The eastern parts of the Frankish kingdoms, especially Germany and Italy, were under continual Magyar assault until the invader's defeat at the Battle of Lechfeld in 955.
Does the answer answer the question?

ANS: yes

QUES: Q: The first astrolabe with a mechanical calendar was invented where?
A: The astrolabe was invented in the Hellenistic world in either the 1st or 2nd centuries BC and is often attributed to Hipparchus.
Does the answer answer the question?

ANS: no

QUES: Q: During what period of domination were many Greeks unable to interact with it's central location ?
A: During the Ottoman rule of Greece, a number of Greek enclaves around the Mediterranean were cut off from the core, notably in Southern Italy, the Caucasus, Syria and Egypt.
Does the answer answer the question?

ANS: yes

QUES: Q: Where and when was the Zune HD marketplace announced?
A: Further details were released at the Microsoft press conference at E3 2009.
Does the answer answer the question?

ANS:
yes