Answer 1:   The only intermediate trump in the N-S hands is dummy's ♥ 9.  Therefore the only 4-1 split you can hande for no loser is a singleton Queen with East.  Because of the E-W intermediates, in all other cases, you cannot pick up the suit for no losers even if you can see all the E-W cards.  This is even true if West has a singleton Queen.  If you are still in doubt, I suggest that you take one suit from a deck of cards and try it out for yourself.

Answer 2:   With 8 cards missing the queen, it is normal to finesse, as opposed to "playing for the drop."  If the E-W trumps divide 3-2 and you are lucky enough to find East with the ♥ Q, all is well. 

However, because of the potential of dummy's ♥ 9, you should start the trumps from the North hand.  You'll need to get to the board, so begin by leading a spade to dummy's king.

Then lead the ♥ 2, intending to finess your jack, and hope for the best.  However, when East plays the ♥ Q, you win the ♥ A and cash the ♥ J.  As expected, East shows out.  It is then child's play to lead through West's ♥ 10 8 to dummy's ♥ K 9. 

Once all the trumps are drawn, you can easily win the last four tricks with three spade winners and the ♣ K.

By the way: If you had foolishly played dummy's ♦ K at trick 1, you'd go down!  E-W could then play four rounds of diamonds.  When East ruffed the fourth round with his ♥ Q, you couldn't shut out West's ♥ 10.

Hand courtesy of More Declarer Play the Bergen Way by Marty Bergen.