SPAGHETTI O'S
Credit: LA Times Crossword
September 26, 2012
Jeffrey Wechsler (#1-4)

How many single letters can you think of that are used in their capital form and pluralized with an apostrophe s (O's) - and are found in common expressions?

HINTS:
Sleep
School (2)
Behavior
Money
Baseball

(Possible) Answers:

1. Get some Z's
2. Three R's
3. Straight A's
4. Mind your P's and Q's
5. $50,000 - Fifty G's
6. Seven K's - strike outs