[Q]: Which of the following solutions is better for the following goal:
teeth

[A]: chomp bubblegum noisily

[Q]: Which of the following solutions is better for the following goal:
handkerchief

[A]: washed in the tumbler to clean

[Q]: Which of the following solutions is better for the following goal:
Label topic of a paper notebook

[A]: On the front of the notebook, write in black marker what the topic of the notebook is, allow marker to dry for several minutes

[Q]: Which of the following solutions is better for the following goal:
to quickly untie knots

[A]:
twist the loose end as much as possible and push it back in.