First Answer
The opening lead is the seven of diamonds (three, Ace, six); back the Jack of hearts (Ace, three, five).
Repeat Question 1
What can you infer about the strength and shape of the opponents’ hands? They have 21 HCP combined (likely 11-12 East, 9-10 West). West appears to have Q10x of hearts and should have less than four spades. The most likely shapes for East are 4=1=5=3 and 3=1=5=4 (West 2=3=3=5 or 3=3=3=4).
What now?