Goal and options: Prevent house rodents.
output answer: Duct tape steel wool at entrance points.

Goal and options: To hang a router on the wall.
output answer: Properly setup the screws and clamps into the wall and hang the router on the mounting points.

Goal and options: Toast a hamburger bun
output answer:
Spread a very thin layer of vegetable oil or butter onto the inside surface of the buns. Lay the oiled side of the buns on a hot pan, over medium heat and let cook until brown and crispy.