10 = Downing Street (Residence of the British Prime Minister)
The answer to the Ditloid is 10 Downing Street - the address of the Prime Minister of the U.K.
Four strings on a double bass.
4 S's in Assassin
I Saw Three Ships
This is a Ditloid. The answer is 12 sides on a dodecagon.
A Social Security Number has 9 Digits
1st March = Saint Davids Day Gavin.
It's a Ditloid. 180 Maximum Score in Darts.
10 Perfect Score in a Gymnastics Event
12 seconds on the buzzer
This is a Ditloid. The answer is 0 (zero) Sides on a Circle.
6 Stars in the Flag of Australia
64 Squares on a Draughts Board