Try it as a problem if you want first:
East opens 1♥ and West makes a bergen raise showing 7-10 and 4 heart support, over this East jumps to 4NT RKCB and west bids 5♣ showing 1 or 4. East then bids 5♦ asking for the trump queen and West bids 5♥ denying it.
The bidding:
----- 1♥
3♦ 4NT
5♣ 5♦
5♥ pass
What is your opening lead and why?
Assuming the opponents are missing the trump ace and the trump queen you lead a diamond trying to build a diamond trick, and 2 trumps for your side. This is the full deal:
Declarer asked for the trump queen missing 2 aces and holding the queen himself to avoid a singleton club lead that might defeat 5♥ when the club ace is missing or the trump ace is missing and they can get a club ruff. So leading the singleton club, and then ducking a heart to see pd's signal would have worked perfectly to defeat 5♥ while the "normal" diamond lead just destroyed your defensive communications.
The interestng questions to debate are:
Are there other situations where asking for the queen that you have in your hand can work in your benefit? If it becomes a habit of course pd will have to alert "he has done this with the queen in his hand before". As a defender how do you know which case it is?
Luis

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