Let’s Defend

When you lead low against a suit or a NT contract and dummy comes down with a number of low cards, partner in 3rd seat is supposed to play HIGH.
With KJX, for example, the K is the proper play. With equal high cards, however, 3rd hand plays the lower or lowest equal:  with KQX, the Q is the correct card to play; with QJ10, the 10 is the correct play.

Rule 1 – Partner cannot have the card directly beneath the one he plays.  For example, if partner plays the 9, he can’t have the 8.
Rule 2 – If you ehave the card directly above the one partner plays, or if declarer wins the trick with the card directly above the one partner plays, partner has played his highest card.  For example, if you have led from a J high suit and partner plays the 10, partner has played his highest card.
In each problem, assume the bidding has gone:

      South        West         North        East
      1NT           P              2C           P
      2D            P              3NT         P

Now use the above rules and determine who has every missing card.
 
 
 
                         863
1.          Q7542                   J
                         K

You (West) lead the Heart 4, partner plays the J and South wins the trick with the K.  Who has the 10?___Who has the A?___ Who has the 9?____

2.                   863 
          AQ542                      10
J
You lead Heart4, partner plays the 10 and declarer takes the trick with the J.  Who has the K?___ Who has the 9? ___ Who has the 7? ____

3.  
1063
          Q842                         9
K

You lead the Heart 2, dummy plays low, partner plays the 9 and declarer takes the trick with K.  Who has the A? ___ Who has the J? ___ Who has the 8? Who has the 7? ____

4a.
                              862
            K643                       7
                              J

  You lead the Heart 3, partner plays the 7 and declarer wins the J.  Who has the A? ___ Who has the 10? ___ Who has the 9? ____

4b.  Same diagram, but this time declare wins the trick with the Q, not the J.  Who has the A? ___ Who has the 10? ___ Who has the 9? ____

Please
e-mail me your answers.  Happy defending.