Where Was the Man When He Jumped Off the Bridge?

DRF—Prof. Norman Geisler introduced me to this logic riddle. If you answer, “on the bridge,” the retort is “that was before he jumped.” If you answer, “in the air,” the retort is “that was after he jumped.” 

The purpose of the riddle is to show that some questions cannot be answered. They contain mistakes of logic that prevent an answer. Not every question should be taken at face value. Some questions need to be questioned, parsed and then possibly answered.