Study: alcohol sharpens the mind
Half the group drank the equivalent of two pints of beer before doing the tests, while the rest carried them out sober. The drinking group solved nearly 40 per cent more problems than the others, and took an average of 12 seconds compared to the 15.5 seconds needed by sober subjects.
via Telegraph.
Flawed study. Did not take into account the historical problems of the beer goggle effect.