Can we create a pie chart with a boolean data type?
You can do so but how realistic it will be that will depend on the kind of requirement you have. To create a pie chart, all you need is one or more dimensions and one or more measures. so, even if you have a Boolean data measure, you can create a pie chart. But as said, whether it will solve your problem or not depends on the kind of requirements you have, and the kind of data you possess.