FOUR RIDDLES

1. Three pro football linemen got jobs in the off-season. What jobs were they?
2. What did the sculptor-turned-policeman like to say?
3. What did the manicurist-turned-policeman like to say?
4. What does a US cross-country trip have in common with an octave on the piano?

Answers:

1. One was a crossing guard. one sold fishing tackle, and one worked at a day care center.
2. "This is a bust." 
3. "Let me see you hands." 
4.  They both stretch from sea to sea (C to C)

Credits:
#1:Daniel C. Bryant
GRIDIRON GRINS
#2-3: Randall J. Hartman 
NY Times Crossword 10/1/1996
#4: Harvey Estes