More troll jokes - Warning, these are bad

Q: How do you shoot a blue troll?
A: With a blue troll gun, of course.
Q: How do you shoot a red troll?
A: No, not with a red troll gun. You strangle him until he turns blue, and then shoot him with a blue troll gun.
Q: How do you shoot a green troll?
A: Tell him a dirty joke so he turns red, strangle him until he turns blue, and then shoot him with a blue troll gun.
Q: How do you shoot a yellow troll?
A: Ever seen a yellow troll?!!!
Q: Why are trolls wrinkled?
A: Have you ever tried to iron one?