If there’s something strange in the neighbourhood – who you gonna call?
The local authorities.
There once was a man from Dundee.
Whose limericks always ended on line three.
I don’t know why.
How many Poles does it take to change a light-bulb?
Light-bulbs cannot be changed. They simply are. Do you mean replace a burnt-out bulbed with a new one. Well, with design, logistics, manufacturing and marketing etc. it could be argued that many people play a small part in the process but the exact number is dependent on the particular circumstances.