Goal:
How to prepare a bath.
Answer:
Plug the drain in the bath tub. Turn on the faucet to make water come out at the desired temperature, usually warm or hot. Wait until the bath is at least half full, but not completely full. Add some soap if desired.

Goal:
washable paint
Answer:
can cover a hole from a screw

Goal:
What can I use to make shiny headgear for my costume?
Answer:
Use a piece of foil.

Goal:
To take a screenshot of a PC screen.
Answer:
Press "Print screen" on the keyboard.