I like being ambiguous sometimes

I can think of some times when people expect you to be really specific about things:

1. If someone gives me a task, they want to know when you can finish it
2. When creating a resume, you're expected to quantify your impact in numbers when possible
3. Planning for the future, you want to know dates, distances and expectations

But oftentimes, we lack context or information to provide the specific information desired. In those cases, numbers can be well-intentioned, but they can be distracting and they can be misguided.

So if you're uncomfortable with the numbers, be purposefully ambiguous.