Three. One to hold the light bulb do and two to spin the chair
Only one but 200 applied for the job.
As a mother, I choose not to screw it in. Light bulbs are dangerous weapons created by the Soviet Union, and I will not screw it in; it could severely hurt my child. As everyone knows, light bulbs are the principle source of autism in this world, and I have to take a stand on it.
A chair, a bed, and a toothbrush.
3: One holds the light bulb, and the other two spin the Chair.