Problem A

Imps
North-South vulnerable
You, South, hold:

^*BWS: double = takeout

What call do you make?

Problem B

Matchpoints
Neither side vulnerable
You, South, hold:

What call do you make?

Problem C

Matchpoints
Neither side vulnerable
You, South, hold:

What call do you make?

Problem D

Imps
Neither side vulnerable
You, South, hold:

Among these plans, which do you prefer?
(a) 2 ♦ then 4 ♣ [BWS: autosplinter];
(b) 4 ♦ then 4 NT [BWS: key-card-ask for hearts];
(c) 2 ♦ then 4 ♥ [BWS: slam-try].

Problem E

Imps
North-South vulnerable
You, South, hold:

What call do you make?

Problem F

Imps
Neither side vulnerable
You, South, hold:

^*spades and a minor
^†pass-or-correct

What call do you make?

Problem G

Matchpoints
East-West vulnerable
You, South, hold:

What call do you make?

Problem H

Imps
Neither side vulnerable
You, South, hold:

^*weak spade raise

What is your opening lead?