I saw this puzzle at the recently organized TiE Conference in Delhi – so thanks to Priya who posted this puzzle. Here it goes:

You are a traveler in a desert full of mosquitoes. You know that if you get bitten the only way to stay alive is to take exactly one A pill and one B pill each day for 3 days. Fortunately, you bought these 6 pills with you on your trip. Unfortunately, you get bitten!

Being anxious you shake out one A pill from its bottle into your hand, but from the bottle B, two pills fall into your hand and you become confused as to which pill was the A pill and which were the B pills.

As the A and the B pill are absolutely identical except in chemical composition, you cannot know which is which? How do you survive?

As always, please send your answers to alokgoyal_2001@yahoo.com and if you like the puzzle, please do share it with others.

Happy staying alive!