SAFETY   EXPERTS  SAY  SCHOOL  BUS  PASSENGERS  SHOULD  BE  BELTED. 

Correct answers came from  Delmar Burkitt,  Andrzej Derdzinski,  Alma Litten,  Julia Minturn,  Carla Nuenke,  William Tippery,  and  Sally Yocom. 

The answer to puzzle #2 is that Harriet lives on the 26th floor and is the bishop's widow.  There must be less than 60 floors.  The other matchups are Emily (doctor's widow) on 13; Florence (coroner's widow) on 22; and Gertrude (architect's widow) on 23.

In puzzle #3 the highest number one can create with two cubes is  32  (one cube has 0,1,2,3,4,5 and the other is 0,1,2,6,7,8).  With three cubes the top number is  087.  There have to be three zeroes, otherwise you can't reach 10.  So even with 6 used again for 9 there can't be two 8's. 

Andrzej Derdzinski  and  Carla Darnell  were the only ones to submit answers to puzzles 2 and 3, both of which were correct.

C G K S H F F U S M        N G P G U N G        T G Z M P R        P G M        C G M        C K S G U P.        P S        O G I        G        I W Y S K        Q G X X W I S M        H K G T R X S        N A I U R Q        P S B S M        C A        P G X R U F I R I.       

Henry left Oakville on foot one morning along the road to Plainfield.  At the same moment Terry left Plainfield by bicycle bound for Oakville.  They met four miles from the latter.  Then Henry mounted Terry's bicycle and continued to Plainfield while Terry walked on to Oakville, then set off again for Plainfield.

Henry, who had himself set off in the meantime, met Terry seven miles from Plainfield.  At that point Henry carried on to Oakville on foot, while Terry continued on the bicycle.  This time they met two miles from Oakville.  Each man walks at a (different) constant speed and bicycles at a (different) constant speed.  How far is it from Oakville to Plainfield?

I have a burglar alarm which is activated and de-activated by typing in a code consistint of a four-figure number.  This is done by touching a display, like the one illustrated, four times.

The engineer recently serviced the equipment.  She noticed that two of the digits on the display were rather well worn, and so were clearly used in my code, while another digit was so clean that it had clearly never been pressed.  She pointed out that any burglar looking at the display would be able to deduce these facts.

Of course, that information would not be enough to work out the code, but the three digits she referred to, read as a three-figure number across the display, happened to form a perfect square.  This might give the burglar the extra clue that my code was a perfect square.  He would then be able to work out the code.  What is my four-figure code?