Here's a view from the intermediate side of the tracks. I decided on my entries before reading beyond Ken's discussion of the first two problems. It was good fun after making my selections to read what you guys (who are much better than me) thought. Doubt it will entertaining for you to read my thoughts, but I may enter regularly just to see if I improve.
A. 3S.
Partner didn’t double – but 3H would be the bid (irrespective of the S holding) with AKxxxx in H and some HCP in minors (even with 4 cards in one of the minors). We could run into A of S lead and a S ruff, and then find Qxx in trumps with East. Still, slam could be on. If partner cue-bids 4C, then I sign-off in 4H. If partner cue-bids 4C, then I will bid 4N, passing a 5H response and raising 5S to 6H (with a prayer that partner has xx or x in S).
B. 4C
Partner will be able to work out from the bidding that I am short/void in H, so I will show the C shortage with a splinter bid. Partner looks to be 5512/5503/5413 so a C shortage could be of great interest, and leaves room for a 4D cue-bid.
C. 2D
I am happy to force here because of the good spades. If partner continues with 2N, 2H or 2S then the choice of game is obvious. After 3C, however (probably showing a 2515/1525 hand), I would bid 3S thinking partner might raise to 4S (holding 2515) which looks a decent spot or bid 4C (holding 1525). I might pass 4C, knowing we have 2 diamonds losers at T1 and T2. I would worry that my 3S bid after partner continues 3C over 2D is not crystal clear, but with 6 spades I would have rebid 3S instead of 2D, so perhaps partner can work out it shows a solid 5c suit?
D. 3D
Slam looks possible even if partner has only a moderate opening hand (say xx Axxx KJx KQxx). Much depends on agreements on game tries. The BWS First Slam-Try [“When the first slam-try after suit agreement is made by a player who has shown no suit other than the agreed suit, it shows length in the bid suit (or, when applicable, where a high-card value will be especially useful).”] suggests 3D – asking partner if he has values in the suit – and that seems a reasonable start. Certainly, if partner has no high cards or control (void/x) in D slam is not on (especially after advertising the D weakness!)
E. 6H
Defensively it looks as though we’re not going to make a H trick, but the two diamond tricks look safe. What have we got in C? Partner probably is 36xx, but not 36xx with both the A and K of clubs (surely 5H is a little shy then?). 6H is on with 3631/3640 or 3622 with either the K or A of C, but looks dicey with 3613 and Kxx/Axx in C. Partner maybe not have bid 5H (holding 3613 or 3622) without the K or A of C. However, if he did, we look unlikely to beat 5S. So, in that case 6H-2 would be a good result.
F. 2N
Assuming East’s jump overcall is 6-9 and shows a 6c suit, we may have game as West is a passed hand: (partner 16, me 10, East 7, West 7). Partner figures to be short in H, so with 16 HCP could not have opened 1N. Alternatively, E could have 9, West 8 and partner 13, so a GF bid looks dodgy. 2N shows partner the H stop and a decent point count (if partner asks where the 11th HCP is, I can point to the combined 10 and 9 of diamonds to distract him while I make my escape).
G. 3S
North may well have KQxxxx in S and not a great deal else. East has shown 4 hearts offering us a choice of declaring with trumps 6-2 (S; with the top 3) or 7-1/7-0 (H, probably missing the A). 3S looks a better spot than 3H - which looks a decent bid if it wasn’t non-forcing. EW look to be heading to D, but 5 may be too many for them. Am not sure about xx here, would partner think 10-13 and no S fit? And is 3S now rather than later stronger? Whatever, partner being a good egg will raise to 4S when holding the C K!
H. CJ
A 3H response to 2C shows a one-loser suit apparently so perhaps 2H shows none or two losers. West with his 6C bid suggests he is missing a black suit ace or the KC. East offers reassurance so must have S covered as well as the red suits. A club lead looks safest – not always a selling point. I want to avoid a red suit lead. A club lead might result in East playing off clubs, then I can discard from the red suits after East does.