Mathematical weirdness....
I'm in England, so you ain't heard nothing yet.
There is a quantity called a Bakers Dozen which is 13! - apparently came into being because bakers were known to be such twisters that they made them add an extra 1 to the normal dozen to even things up a bit!
We also used to have the Guinea - which was 21 shillings. A shillings is 12 pence and there were 20 of those in £1.
- although the penny itself was also available in half-pennies..... and previously in Farthings (quarter pennies)
...... and don't even get me started on length and area measurements.....rods, poles, perches and the like!!!
Hey...... if you know anything to increase hip and butt size then speak up......

Among the many, many handicaps I have are linebacker type shoulders and narrow hips.
- if I could just get my pot-belly onto my ass, I'd be well sorted.