First up: your homework. You are West and it is teams. You opened 1C, 1H from partner and you rebid 1NT (15-17). Partner calls 6NT.
Here are the questions, all relating to the spade suit:
Please be specific re your play: what do you lead from which hand and what then.
1. If you have landed up in 7S (or 7NT) how do you play the spade suit?
2. If you are in 6S in a teams match, how do you play the spade suit?
3. If you are in 4S, does it matter much if you are playing teams, and how would you play the suit?
4. In 4S in a club session, how would you play the suit?
5. In 3NT in a club session, how would you play the whole hand given the four of hearts lead?