It could be '9 inches is diameter of a soccer ball'.
9 Planets in the Solar System
A Stitch In Time Saves 9
X is 8 Points in Scrabble
I think it is 6 segments in a Trivial Pursuit Pie 6 Sections in a Trivial Pursuit Pie
Half past six!
4 S's in Assassin
Got to pick a pocket or 2 (oliver)
A Social Security Number has 9 Digits
I Saw Three Ships
9 stripes in the Greek flag
10 Perfect Score in a Gymnastics Event
4 S in a Q
7 stars in the pleiades**The Pleiades, also known as M45 or the Seven Sisters, is the name of an open cluster in the constellation of Taurus.
12 seconds on the buzzer