2 Pills
I have a very rare, deadly disease where I will die in 24 hours. Luckily, it is very treatable. All I have to do is take 2 different pills - Pill A and Pill B. I have exactly two of each pill, and the pills are all completely identical. There is no way to tell the pills apart, and there is no way for me to get more pills. In order for me to live, I must take one of each pill in the morning and one of each pill at night. Unfortunately, I got clumsy and mixed them all up and I have no way of un-mixing them! How can I stay alive?