You are playing a pretty basic 2/1 structure. Your partner is still somewhat new to the game, but plays a pretty sound game.
1. You come to the first table and sit down next to a a friend of yours and his erratic partner.
You hold:
The erratic player opens 1♥ in third and partner makes a takeout double. Your friend raises the ante and you offer 2♠. The erratic player ups it to 3♥ and it's back to you.
What do you do now?
2. You come to the next table and sit down against a nice elderly lady and her obnoxious partner who is known for his post mortems.
(P) - P - (1♥) - X
(2♥) - 2♠ - (3♥) - P
(P) - ?
You are not playing Ingberman over reverses, so you prefer to set your suit with 3♥ and partner raises. The obnoxious guy on your right, starts to write 4♥ down in his scorecard, but you remind him that the auction is not over. He begrudgingly puts a pass card on the table. Do you make another move?
3. You next sit down at a table with two chatty ladies who seem not to notice you at all while you sit down. On the first board, the woman on your left opens 3♣ vulnerable on J9xxxxx, the ♥K and out. You end up in an inferior spot, but somehow scramble an average minus on the board. On the second board, you pick up the following sparkling collection:
(P) - P - (1♥) - X
(2♥) - 2♠ - (3♥) - P
(P) - ?
You are a bit surprised when partner bids a 2/1. Why are you playing rubber bridge this hand? Regardless, you don't elicit too much useful information out of partner. Do you make another move over 3NT?
4. Your next rounds sees you against two fellows that play 1950s Acol. On the first round the auction goes 1NT - 4♥ by opponents and drifts one off. The 4♥ bidder was 55 in ♥ and ♣ and caught his partner with xx in ♥ this time. On the second round you hold:
(P) - P - (1♥) - X
(2♥) - 2♠ - (3♥) - P
(P) - ?
You open a somewhat heavy weak 2♥ and RHO balances with 2♠ which is passed out. What do you lead?
5. On your final table you play against an and elderly lady whom always seems to squint and a man whom you think is about to fall asleep. You have a nice 2/1 auction that propels you to 5♣:
1♠ - 2♦
2♠ - 3♣
4♣ - 4♦
5♣ - All Pass
The man on your left leads the ♠3 (4th best).
Plan the play.

Help

(P) - P - (1♥) - X
(2♥) - 2♠ - (3♥) - P
(P) - ?