Given 1000 bottles of juice, one of them contains poison and tastes bitter. How do you find it in the smallest number of sips? Adding a single drop of poison to the juice will make it taste bitter. You can assume that you have the antidote for the poison.
Answer
You will need to make a maximum of 10 sips.
Take one drop from 500 of the bottles, and take a sip. If it tastes bitter, it’s in one of those 500 bottles.
Then do the same for 250 bottles, then 125 bottles, and so on and so forth. Until you find the exact bottle that’s the poison.