To enhance/improve your intelligence, I offer that you completely refrain from consuming alcohol and indulge in the enjoyment of some fine medicinal, organic, herbs of the Cannabis sativa family of plants.
This new sensation can be quite relaxing. Make some strong tea with the leaves for a longer-lasting, but somewhat milder experience or inhale the fragrance using a glass 'pipe' but never use fire to vaporize the mixture. Use only a hot-air heat gun directed at the material in the pipe, not so hot that it burns. Inhale deeply, hold for a second and exhale quickly for the optimum effect.
Edit: I forgot to mention, the effect can have a profound influence on your memory, for the worse, during the period of time you are affected by this procedure.