1) How to fix a poop chute (septic system).

2) How to reinforce a road after a flood washes it out.

3) How to cut vegetables (the proper way).

4) How to cut grass with a machete.

5) How to stain and varnish furniture.

6) How to be on live TV.

7) How to eat boa.

8) How to make popcorn over the stove.

9) How to be a clown.

10) Lemons can get stains out of clothes.

11) How to sew..ish

Honorable Mentions
How to repel
How to make guacamole, empanadas, among other things.