Question:
Goal: How do I wind the tape back into a cassette without tearing the tape?

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Take a pencil and insert it into one of the circles. Turn pencil slowly and continuously until all tape has been rewound into cassette.

Question:
Goal: How can I make a wooden board flat?

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Use a hand planer to flatten the board.

Question:
Goal: Cool off the house

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
If the temperature outside is cooler than inside, you put a fan in a window and draw the cool air in to lower the temperature.