IGN: Mellius29 (Blue Server)
Answer 1: Spiritomb
Answer 2: It is widely believed that many Halloween traditions originated from ancient Celtic harvest festivals, particularly the Gaelic festival Samhain; that such festivals may have had pagan roots; and that Samhain itself was Christianized as Halloween by the early Church. Some believe, however, that Halloween began solely as a Christian holiday, separate from ancient festivals like Samhain.
Answer 3: Normal and Rock
Answer 4: Golett/Golurk, Sandygast/Palosand (Gost/Ground) and Shedinja (Wonder Guard)
Answer 5: 9 (Yamask, Cofagrigus, Frillish, Jellicent, Litwick, Lampent, Chandelure, Golett and Golurk)