Question:
Goal: How to attach the track pieces of a toy train set?

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Take individual pieces and attach them together by latching them on their groove.

Question:
Goal: How to make a trash bin into a lamp?

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Cut the trash bin to proper height. Fix the bulb holder, bulb and wiring on to a metallic or wooden rod and fix it in the center of the bottom of the bin.

Question:
Goal: To change a flat tire on your vehicle.

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
jack up the car with a tire jack. Unscrew all four lugnuts and remove the tire. Replace the flat tire with the spare tire, found in the trunk. Replace all four lugnuts and lower the car with the tire jack.