Misc: What does cb stand for?

Questions

Don't Strain Yourself Thinking ;-) : Although not all come from France, ______ fries are often served with hamburgers.?

Don't Strain Yourself Thinking ;-) : An _____ clock usually wakes you in the morning.?

Don't Strain Yourself Thinking ;-) : During the American Revolution, the Boston Tea Party took place in ______ Harbor.?

Don't Strain Yourself Thinking ;-) : How do you spell abbreviation?

Don't Strain Yourself Thinking ;-) : How many pencils are there in a dozen?