18
Q:

Some blades are hammers. Some hammers are knives. Some knives are axes.

Conclusions:

1. Some axes are hammers

2. Some knives are blades

3. Some axes are blades

A) None follows B) Only 1 follows
C) Only 2 follows D) Only 3 follows

Answer:   A) None follows



Explanation:

Since each combination has of premises has 2 particular premises, so no defenite conclusion follows