I use a frying pan to drink out of.
I use a glass / a cup / a mug to drink out of.
You use washing-up liquid to clean plates.
Yes
The fridge is cold inside.
Yes
The fridge is colder than the freezer.
The freezer is colder than the fridge
I turn on the tap to get water.
A tea towel is for making tea.
A teapot is for making tea.
