Before you start, indicate that you will be taking questions at the end.
During the presentation, remind the audience to jot down questions they may want to ask.
At the end of the speech, invite questions with a smile and with open body language.
Repeat or paraphrase the question ,so the whole audience can hear it and it breaks the connection to the questioner.
Answer to the whole room.
Be brief and clear.
If you do not get a question, you can ask one yourself. For example, “I thought you might ask me xyz. Then after you have answered the question, ask, “Any more questions?”
At the end of questions return to your main idea or point and repeat it
Next time, answering difficult questions and dealing with difficult audiences….