[Q]: Which of the following solutions is better for the following goal:
To open a pickle jar when it is stuck.

[A]: Take a shirt and grip the lid when you twist. This will make it loosen and come off.

[Q]: Which of the following solutions is better for the following goal:
To make trunk for Ferrero Christmas Tree

[A]: Glue two side edges cut from cereal box together to make a square tube.

[Q]: Which of the following solutions is better for the following goal:
clean dirt and debris out from underneath fingernails.

[A]: using a nail brush and warm soapy water, lather your hands up and wet the nail brush with warm water and brush perpendicular to the nail plate so the bristles get underneath the free edge of the nail, then rinse and dry hands.

[Q]: Which of the following solutions is better for the following goal:
How do you get rid of ants?

[A]:
Sweep up food crumbs, wipe up spills, take out the garbage and don't leave dirty dishes sitting around the house.