50. One to screw in the light bulb and the remaining 49 to guard him .
or
They can make little things count.
or
The question is irrelevant, since you couldn't find the dolls even if you knew how many. (Note: Well, this was a good joke in 1983-84. . . .)
or
The owner got tired of the (w)hole business!
or
Nothing, peanuts don't talk.
or