Goal:
To ensure garter band won't slip when wearing it.
Answer:
Use a silicone band from stockings

Goal:
How to prevent pasta from sticking together after it is cooked?
Answer:
While the pasta is cooling, pour some olive oil into it and toss it around

Goal:
How to get elected as a president in the US?
Answer:
You should contest in the presidential elections and win.

Goal:
When building a wooden base for a box, to ensure the wood stays together while drying, you can
Answer:
Clamp the wood to a piece of glass while it dries to hold it still