[Q]: Which of the following solutions is better for the following goal:
how do you scratch someones head?

[A]: rub on it lightly with your nails.

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

[A]: can have a hat hung on it

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

[A]: can poke through paper.

[Q]: Which of the following solutions is better for the following goal:
How can I dice garlic without stinky hands after?

[A]:
Wear tight fitting surgical gloves while you are dicing smelly things like fish, garlic, onions, etc. After you are done, just toss the gloves and you're good to go!