juan who nose?
The max free baggage allowance is 20kg, but no single item may be more than 32kg (I think that is an international standard for all airlines).
Confused? Basically, if your bag weighs between 20kg and 32kg, you may be liable for excess. Above 32kg, you'll have to start removing things.
AFAIK, a couple would have a combined 40kg allowance, but still no single item above 32kg. I saw a couple have to unpack their bags on a JER to CVT flight earlier this year - no idea how they had so much luggage for a short break!