"Witch" comes from the Saxon word wicca which means 'wise one'. Witches were thought to be wise enough to tell the future.
Halloween is the 8th largest card-sending occasion. There are over 28 million Halloween cards sent each year!
Of all canned fruits and vegetables, pumpkin is the best source of vitamin A. Just a half-cup of the orange stuff has more than three times the recommended daily requirement.
With an estimated $1.93 billion in candy sales, Halloween is the sweetest holiday of the year (beating out Easter, Valentine's Day, and Christmas). In fact, one quarter of all the candy sold each year is purchased between September 15 and November 10.
The world's fastest time to carve a face into a pumpkin is 54.72 seconds, by Stephen Clarke (USA), on October 23, 2001 (source: Guinness World Records)
Did you know: A traditional food eaten on Halloween is barnbrack, a kind of fruitcake that can be bought in stores or baked at home. A muslin-wrapped treat is baked inside the cake that, it is said, can foretell the eater's future. If a ring is found, it means that the person will soon be wed; a piece of straw means that a prosperous year is on its way.
The Irish used turnips as their "Jack's lanterns" originally. But when the immigrants came to America , they found that pumpkins were far more plentiful than turnips. So the Jack-O-Lantern in America was a hollowed-out pumpkin, lit with an ember.
all facts from http://www.coolest-holiday-parties.com/halloween-facts.html