Question: How to separate a piece of paper into 2 equal pieces, cleanly, without scissors?

  Options: 
 A. To separate a piece of paper into 2 equal pieces, cleanly, place a saw in the middle of the paper and pull the paper up against the edge of the ruler to separate it into two pieces.
 B. To separate a piece of paper into 2 equal pieces, cleanly, place a ruler in the middle of the paper and pull the paper up against the edge of the ruler to separate it into two pieces.
Answer: B