Vetala

A Vetala is a half-man, half-bat vampire-like creature from Hindu mythology.

King Vikram
One day, a holy man told King Vikram to fetch a corpse from a tree. Upon reaching the tree, King Vikram discovered the corpse was in the hands of a Vetala. On the walk back, the Vetala told stories to King Vikram, each ending with a riddle. After the twenty-fifth story King Vikram was wise and remained silent. This pleased the Vetala, who revealed the holy man intended to kill him. King Vikram chopped of the holy man's head, putting an end to his would-be murderer.