60 Minutes in a Degree
1st March = Saint Davids Day Gavin.
Millimetres in a Yard
4 S in a Q
2359 One Minute to Midnight (23:59)
15 Men on a Dead Mans Chest
The ditloid "24 D in W H C the M" stands for "24 hours in a day, which has a meaning." It references the number of hours in a full day.
One Man's Loss is Another Man's Gain
Days in Every Month
It's a Ditloid. 180 Maximum Score in Darts.
10 (Movie with) Bo Derek and Dudley Moore
The ditloid "M D A and S are the 4 basic F" stands for "Mammals, Birds, Amphibians, and Reptiles are the 4 basic Forms of life." It references the four primary classes of vertebrate animals in biological classification.
10 equals Bo Derek and Dudley Moore (10 is the name of the movie)