A few years ago, a professor of mine was driving down a country road, when all of a sudden a deer jumped out of nowhere, and landed right in front of the car. And then lay motionless in front of the car. My professor was puzzled why a deer would try to cross the road right at the moment he was passing - no cars in front of him, no cars behind him. If only that deer had been a little more patient, it would still be alive today! So my professor decided to do some research and figure out why the deer had such poor judgment when it came to crossing the road. What he found was very surprising - turns out that deer aren't necessarily dumb creatures, they're just creatures of habit. And that habit will save them in one situation, and kill them in another.
Questions are like roadblocks on the path to productivity - if you or your team have a question, then not much can be done until you answer that question. The fewer questions you have, the more you'll be able to get done. If you can answer any remaining questions quickly, then you'll be able to get back on the road to productivity in less time. And if you don't have to involve a lot of people in order to answer questions, then you'll be able to keep more of your human resources productive.