I’ve started asking Google part of a question and seeing how it finishes with autofill. Sometimes, my whole class is taken up by the search for the answer to these Unanswerable Questions.
Here are some of the ones I’ve used and posted on Twitter. More will come as I continue to ask them.
You can tweet me yours and I’ll start a page of Unanswerable Questions I’ve received! @MathDenisNJ