Goal and options: How to Care for a Pet Duck
output answer: Feed ducklings and adolescent ducks a diet that is 18-20% protein.

Goal and options: To cool down a batch of cookies that you just baked in the oven?
output answer: Set them on the window sill for 20-30 minutes before eating them.

Goal and options: To let the water "breathe" in the aluminum wall aquarium.
output answer:
Create large holes in the aluminum at the top of the tank.