Er, what was the number of your house again?

I'm not sure what the collective noun for numbers is, but I think it should be a confusion of numbers.

I think the top one is for the electricity account (KahraMaa is the name of the water and electricity company), the second for water, the third for a survey, as helpfully written, and of course the actual house number is 9A, although 9A in Arabic could be mistaken for 19 with a flourish.

They are lucky! My place doesn't have a number, except for the water and electricity ones. My building doesn't have a name (it has a name, but it shares that name with a number of other buildings) all of which add up to make giving directions in Doha quite tricky.