[Q]: Which of the following solutions is better for the following goal:
How can you see something if you forgot your glasses?

[A]: Make a ring with your fingers and look through that. It will help you see better.

[Q]: Which of the following solutions is better for the following goal:
To tell your right and left ear buds apart without looking

[A]: Tie a small knot at the speaker end of the left hand one.

[Q]: Which of the following solutions is better for the following goal:
How do I start a car?

[A]: Grab the key, push it into the ignition then twist until the engine putters up

[Q]: Which of the following solutions is better for the following goal:
How to make a page-holder for a book without using any addition material?

[A]:
You could fold the tip of the page of the required page to function as a page holder.