yes
yes
yes
no, there are no elves or other magical beings associated with the Christmas in Ethiopia.
By virtue of being a Christian tradition, no magical beings are associated to Christmas in Mexico, beyond the gift-giving visit by both Saint Nicholas (a.k.a. Santa Claus) on December 24th, and the Three Wise Kings -- Melchior, Gaspar and Balthasar -- during the Epiphany Celebration, on January 6th.
yes many people say their is and research says yes
kalikantzia
Oh, dude, in France, they've got this cool cat called Père Noël, which is basically their version of Santa Claus. He's like the French Santa, but with a fancier name. So yeah, if you're looking for magical beings in France during Christmas, Père Noël is your guy.
Vietnamese who celebrate Christmas do believe in their own Santa Claus. Here he is called Ông già Noel, a name which translates roughly to "Christmas Old Man" or "Old Man Christmas."
yes
This is because they are magical beings and exist by magic.
They are referred to as 'squibs.' Mr. Filch is a squib, as is Mrs. Figg.
The word "leves" unscrambles to form the word "elves," which is a common Christmas term referring to Santa's helpers who make toys in the North Pole. Elves are often depicted as small, magical beings with pointy ears and colorful clothing, assisting Santa Claus in preparing for Christmas by making and wrapping gifts for children around the world.