You are given an answer. Create a question for the answer.
Example: In fact, it stands for Winter. In the case of synthetic 0W-20 oil, this means that it flows as easily as a 0 Weight oil in Winter temperatures, but is as thick and viscous as a 20 Weight oil once normal engine temperature has been reached.
Example solution: 0w-20: what does it mean?
Example explanation: The answer is explaining about the meaning of 0w-20, so the question should ask about that.

Problem: There are 1.89271 liters in 1/2 gallon.

Solution: 1/2 gallon how many liters?