A fun one I tried was "Which president became supreme dictator" that answered "William Howard Taft." It took some finessing to get it (I originally started with

A fun one I tried was "Which president became supreme dictator" that answered "William Howard Taft." It took some finessing to get it (I originally started with "dictator for life"), but it's clear that it picked up only "supreme" and "president" in the query to guess that you meant to ask which president became a Supreme Court justice.