In the Ballad "Lord Randall," the phrase "four and twenty milk kye" refers to Lord Randall's poisoned meal. It signifies that the young man has ingested a lethal substance, which eventually leads to his demise. The mention of the milk kye (cows) highlights the method through which the poison was hidden in his food.
If you mean twenty-four twenty-fifths of 75, the answer is 72. Twenty-five times 3 is seventy-five, twenty-four times 3 is seventy-two.
Icositetranocular means having twenty-four eyes (i.e. some aliens or monsters have twenty-four eyes).
a score is equal to twenty, so four score is 80
a score is equal to twenty, so four score is 80
If you mean 420, it is CDXX
420 = four hundred twenty.
Four and twenty blackbirds
There are various lyrics promulgated for the "child's ballad" entitled "Lord Randall", so the last stanza can vary. There is one version (Harry Belafonte) which also mentions hell as the fate of the poisoning female (being hung). (see related link)
60 - 24 = 36
Four score is a number. A score is twenty, as a dozen is twelve. Four score is 80.
It is not clear what "four two" at the end mean.
On a twenty-four hour clock, 15.20 is 3.20 in the afternoon.