What is the correct opening bid with these cards?

AQ KJ104 KJ53 K85

• 1 Diamond
• 1 Heart
• 1NT

AJ KJ104 KJ532 K5

• 1 Diamond
• 1NT

AK5 AKQJ5A52 A2

• 1 Heart
• 2 Hearts
• 3NT

AQ AKQ84 KQ5 K32

• 1 Heart
• 2 Hearts
• 3NT

Your partner opened the bidding 3NT. What do you do?

J9642 5 98643 Q5

• Pass
• 4 Diamonds
• 4 Spades

J98752 _ 9864 Q54

• Pass
• 4 Spades

AQ842 K8432 5 64

• 4 Hearts
• 4 Spades
• 5 Spades

AQ842 5 K8432 64

• 4 Diamonds
• 4 Spades
• 5 Spades