1. 
Fact 1: All drink mixes are beverages.
Fact 2: All beverages are drinkable.
Fact 3: Some beverages are red.
If the first three statements are facts, which of the following statements must also be a fact?
I: Some drink mixes are red.
II: All beverages are drink mixes.
III: All red drink mixes are drinkable.

A. I and II only
B. II only
C. I and III only
D. III only
E. None of the statements is a known fact.

Answer: Option D

Explanation:

"All drink mixes are beverages" but not all beverages are drink mixes so we can conclude "some beverages are drink mixes" and "Some beverages are red".

I. Some drink mixes are red. - Only in extreme case it is true.

II. All beverages are drink mixes - Is false as per above discussion.

"All drink mixes are beverages" and "All beverages are drinkable". So we can say "All drink mixes are drinkable".

III. All red drink mixes are drinkable - true as cumulative result.

So Option D) III Only is the correct answer.