[Q]: Objective: Clean inside heating vent.
[A]: Place thin rag around butter knife and stick between vent slats.

[Q]: Objective: how to get the most juice out of a lime
[A]: Once you've cut and squeezed a piece of lime, twist a fork or spoon into it. This helps to break up the lime segments and get out any remaining juice.

[Q]: Objective: How to boil liquid?
[A]: heat liquid til bubbles rise constantly to the surface

[Q]: Objective: How do I sharpen a pencil without a pencil sharpener?
[A]:
Take a small knife and press against the tip and stroke off tiny pieces of the pencil tip, until you expose the lead/ graphite and can write with it.