[Q]: Which of the following solutions is better for the following goal:
To measure the length of a board,

[A]: use a tape measure. Place the end of the tape at one end of the board, then pull the tape to the other end of the board.

[Q]: Which of the following solutions is better for the following goal:
How would you make the round ends of a duct tape bag?

[A]: Use a pencil to trace around a roll of duct tape on a sheet of paper.

[Q]: Which of the following solutions is better for the following goal:
To make a simple base for a pinata,

[A]: blow up a balloon, tie it shut, then cover it with paper mache.

[Q]: Which of the following solutions is better for the following goal:
To shine silverware with items you already have.

[A]:
Just grab your toothpaste. Rub a bit of toothpaste (paste, not gel) onto your silver, rinse it clean, then dry with a soft cloth.