It's not a shrub, it's a lemon tree my dear Watson.
or
It saw the ginger snap.
or
Two: One to screw you out of a fee, and the other to send you to a store where they ran out of bulbs weeks ago.
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
A pork chop.
or