[Q]: Objective: To whiten your teeth naturally.
[A]: Rub the inside of a banana peel on your teeth.

[Q]: Objective: Test out rain protection of new home.
[A]: On a rainy day, visit potential house to see how water drains.

[Q]: Objective: To open up "my computer" on a Windows PC,
[A]: hit the buttons "Windows" and "E".

[Q]: Objective: To seal egg rolls when you are a vegan,
[A]:
use a bit of water on the ends.