Alex came across 5 islanders, all of whom knew one another and would only answer yes-or-no questions.
What is the minimum number of questions Alex needs to ask, to successfully determine how many of the islanders are paladins?
Riddle AnswerGood Riddles
Tomorrow’s Yesterday
Spider’s Web Puzzle
A spider is trying to build a web for itself. The web built by it doubles every day.
If the spider completely built the web in 15 days, how many days did it take for the spider to build 25% of the web?
Riddle AnswerHandshakes Between 7 People
How many handshakes occur when a group of 7 people shake hands exactly once with every other person in the group?
Riddle Answer4 Keys and 4 Locks
There are 4 keys and 4 locks. What is the maximum number of times you need to try the locks so as to match all 4 keys to their locks?
Riddle Answer