How many ounces of whiskey are in 2 parts?

It's just a ratio. You can replace "parts" with any other unit of measure.

Eggnog punch:

- 2 parts whiskey

- 5 parts eggnog

- 1 dash nutmeg per serving

2 ounces of whiskey + 5 ounces of eggnog = one hefty serving for one happy Santa.

2 pints of whiskey + 5 pints of eggnog = 32 hefty servings, for a raging Holiday party!