[Q]: Objective: How to sharpen a knife with a sharpening rod?
[A]: Hold the sharpening rod with your weaker hand and stroke the knife away from yourself with your dominant hand, alternating the sides of the blade

[Q]: Objective: vise grip
[A]: squeezing a bolt to loosen it

[Q]: Objective: How to create a homemade potato shredder
[A]: Take a traditional tin coffee can and punch holes in it with a screwdriver, use the screwdriver to pry the holes wider and file the edges of the hole with a rat tail file. Press the potato against the can and push it back and forth.

[Q]: Objective: How to put air in tires
[A]:
Remove cap, connect hose to tire, when tire is full remove hose and replace cap.