Four friends are gathered at a pub. They have in front of them two 8-pint trankards full of beer, and an empty 3-pint mug.
Since they are still sober, they quickly calculate that they have 16 pints for the four of them, which comes out to an even 4 pints per person.
Can they divide the beer equally with the containers they have available?
(In reply to solution (w/ caveat)
I'd be interested to know if this caveat is allowed - I mean, are the two 8-pint tankards different shapes? Or are they opaque, for example? If so, balancing out their contents could be problematic...