Of course they are made up as is every question. However, each question has a purpose to someone. For example, there was a study conducted on one question. "What floor should be used to drag sheep?" Now, this might seem odd, even so, the study was for a sheep sheering company. If the floor was too hard, then the sheep would become damaged from digging their hooves into the floor. If the floor was too soft and smooth, then the workers would slip while dragging the sheep.
Every answer matters to someone.