I turn 21 today!
If you haven’t seen before, I post an age-themed puzzle each year (Here’s last years). 21 is drinking age (in US), so I have a drinking related puzzle for you.
Normally in these sorts of puzzles, you have an unlimited amount of liquid, and 2 or 3 cups, but like all college students, I’m too frugal to give you all that! In this puzzle, there’s only 1 cup.
The cup is a cube, measuring 10 units in width, length, and height, and which also has a vertical dividing wall that goes halfway up cutting it in half. I’ve attached a diagram to make it more clear, along with a front and top view.
You are given the cup and a straw, and the cup begins filled to the brim with beer. Besides the beer that comes in the cup, you aren’t given any extra (or any source to keep beer you’ve poured out.) Your goal is to drink exactly 21 cubed units of beer.
