Only one, but the light bulb really has to want to change.
Twenty-one. One to change it and twenty to form a fact-finding committee to learn more about how it's done.
10. 1 to change it and 9 to say they could have done it better.
Just two. One to politely ask and the other to politely help.
To get to the other side!
Freud
Because they are both surrounded by nuts.