Your mother must mix the flour and water to make bread.
Don't try to mix oil and water in patrolling the peace.
For example, you might say, "I mixed the sugar and water."
In a small bowl, mix the cornstarch and cold water.
Do not mix toilet paper, water, or soap with the sample.
Make a simple syrup by mixing the sugar and water in a small saucepan.
What do you get when you mix dirt and water?
A simple glue can be made at home by mixing wheat flour and water.
He hesitated, then refilled it, mixing less water than before.
This may not be mixing oil and water but, based on the traditional definitions of growth and value, it's pretty close.