SOLUTIONS
a) The queen Third hand high when not holding equal high cards
b) The king Lower of two touching equals
c) The ten Lowest of three touching equals
d) The jack Lower of two touching equals
d) The jack Third hand high when not holding equal high cards
Who has the King? Declarer.  If partner held both the Ace and the King, he 
would have played the King - lower of touching honors.
Could the Jack be lower of No.   YOU have the touching honor (Queen), therefore
touching honors? the jack is partner's highest card!
Could partner have the Ten? No.  If partner had the Ten, he would have played the 
ten when holding the jack and ten.  (lowest of touching
equals).
What do you play to trick one and what do you return?
a) ♠ QJ52 Play the jack lower of touching equals - return the 2 (original 4th best)
b) ♠ A97 The ace - return the nine.  (With 2 remaining, play the higher)
c) ♠ KT652 Play the king and return the five (original 4th best).
d) ♠ AJ5 Win the Ace, return the jack (as in b)
e) ♠ KQJ Play the jack and return the king (as in b & d)
f) ♠ KQJT Play the Ten - with this solid sequence, return the king.  When you
have already played your lowest of a solid sequence, then return your highest.