"How do you manage having so many things to do such as work, family, and school?"
"How do you balance both your family and your job?"

This is another easy answer where you can show your willingness to work hard. But it is unlikely you will get this question. Most of the time, the interviewer will ask this during small talk. When interviewing in America, I noticed there are many times where small talk is important. For example, walking together to the office could take two minutes. Are you going to say nothing during those two minutes? What if the interviewer asks how your day is going? He or she is basically initiating small talk. So it is definitely possible you will engage in small talk, and you should definitely practice small talk.

"With my kids in school, it's really easy to manage my time. I have the full day to myself and I want to be productive by helping a company grow."

"I'm very organized and I plan everything I do. This helps me to easily find a balance between family and work."

"Well, during the day while my kids are in school, I like to work. And in the evenings we spend time together doing homework. I really enjoy being busy and managing multiple things in my life."

This is a short answer that shows the ability of multi-tasking. Also, a person who enjoys being busy is a good sign. So even if you receive questions during small talk, make sure to give answers that show good traits.