[Q]: Which of the following solutions is better for the following goal:
To glue magnets to a board

[A]: Sand both surfaces before applying epoxy

[Q]: Which of the following solutions is better for the following goal:
how do you fill a hole outside?

[A]: fill it with sand.

[Q]: Which of the following solutions is better for the following goal:
To find the center of a coin, you can

[A]: Use a ruler

[Q]: Which of the following solutions is better for the following goal:
To make the chocolate pasta dough pliable enough to roll

[A]:
Wrap dough in plastic wrap and allow to sit a room temperature for one hour.