um, no
Gandalf is the name of a character from the Lord of the Rings trilogy. It is not the name of a community.
Gandalf's sword is called Glamdring, 'foe-hammer'.
Gandalf was known by different names to different peoples: Gandalf to Northern men, Mithrandir to the elves and Dunedain (as in Gondor), and Tharkun to the Dwarves. Olorin was his true name as a Maia.
Gandalf
Gandalf does not have a particular last or sir name. His is called by many names by different races, creeds and peoples. The most common are Gandalf the grey or white, gandalf greyhelm or Mithrandir. There may be more, but I cannot remember off the top of my head. Actually, the name is greyhame (cloak), and he is also known as Stormcrow by Rohan.
Yes. It is correct to say that viking was a name of a lunar probe.
No, the name Wilson is not a Viking name. The name Wilson is Old English in its origin and means desire.
Gandalf bore the sword Glamdring; "Foe-Hammer". The orcs of the Misty Mountains called it 'beater'.
In Middle Earth. His name is Gandalf.
Jaya
No.
yes, it is a real viking name like ketil the trout face