THE DIFFERENCE BETWEEN XIII

What's the difference between:

1. A pretty bonnet and a boy?
2. A bank robber and a Scrabble cheat?
3. The Amazon River and a Jewish delicatessen?
4. The final copy of a page before being typeset and a person impervious to chutzpah?


Answers:

1. One becomes a woman and the other doesn't. 

2. A Scrabble cheat is a blank robber.

3. In the Amazon you can see a man-eating piranha. In a Jewish delicatessen you can see a man eating herring. 

4. One is a galley proof and the other is gall proof. 

Credit:
#4: LA Times Crossword
       Sept. 10, 2010
       Jack McInturff