How many people in a house? If house big and with double storey - necessary number can be much more than four.

If a small single storey house (terrace) - only maximum four or five. If more than these numbers it'll cause distress to the owner of house and/or neighbour.

Fahruz. What's the word on the animated gif? That moving thing?

p.s: 314159265 - is it a pi? :eek