Five thieves were in a tavern and overheard a drunken shopkeeper bragging about his large collection of
diamonds. Later that night, one of the thieves broke into the shop. He had a bit of a conscience (as far
as thieves go) and only took half of the diamonds. But on his way out, he decided to take one more. After
all, he was a thief. A while later, the second thief arrived. It was a night of odd coincidences. He also
took half of the remaining diamonds plus one more. Shortly after, the third thief arrived and likewise
took half of the remaining diamonds plus one more. Next, the fourth thief arrived and he as well took
half of the remaining diamonds plus one more. Finally, the fifth thief arrived only to find that there
were no diamonds left. How many diamonds did the shopkeeper have at the start?
Do you have a suggestion
for this puzzle (e.g. something that should
be mentioned/clarified in the question or solution, bug, typo, etc.)?