Question:
Goal: How do I sand the wall when making a magnetic drywall?

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Use a random orbit electric sander for most of the wall and use a manual mouse shape sander for the inside corners and hard to reach places

Question:
Goal: To remove old, dried paint from a paint well, you can

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Place some water in the well, swirl it around, and leave the well sitting upside down

Question:
Goal: To neutralize food that is too salty,

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
add some water to the dish.