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Author Archives: Alok Goyal
Puzzle #146: The Proud Party Goers
This is a very nice puzzle I got from a site (fivethirtyeight.com) recommended to me by Suman Saraf – thanks Suman. It’s Friday and that means it’s party time! A group of N people are in attendance at your shindig, … Continue reading
Solution to Puzzle #144: Pirates and Gold Once Again
Many correct responses to this puzzle, but the I was happiest to see was Danny from Washington DC, an 8th grader – well done Danny. Other people who sent the right answer included Suman Saraf, Vivek Rai and Pratik Poddar. … Continue reading
Puzzle #145: The WHO Puzzle
This is another puzzle from the Ramanujan collection, a nice probability puzzle! The World Health Organization has just identified a new disease. The good news is that it is very rare: only 1 in every million people has it. The … Continue reading
Solution to Puzzle #143: Magic 8
Apologies for a long period of silence, I was traveling on work and then on vacation outside India and in the process just did not have the time to respond to messages and also add any posts. Normal service resumes … Continue reading
Puzzle #144: Pirates and Gold Once Again!
This is a beauty of a puzzle taken from the recent internet puzzle series on Ramanujan going on. Several great puzzles, this one of them. Jack and Will are very successful pirates who have become very wealthy from their years … Continue reading
Solution to Puzzle #142: Bills and Two Hats
Got many correct answers for this puzzle, particularly pleased that Mahi, Suman’s daughter also answered this correctly. Other people to send correct answers included Suman Saraf, Bhanu, Pratik Poddar and Karan Sharma, my nephew. Well done all. The boy maximizes … Continue reading
Puzzle #143: Magic 8
This is a simple puzzle, and I hope that the adults will take the pain of showing this to their children. This was contributed to me by my daughter, Arushi, who got this puzzle in her holiday homework. While the … Continue reading
Solution to Puzzle #141: Wolfs and Sheep
This was not an easy puzzle, I received only 3 correct answers – Pooja (my wife), Vishal Patel and Suman Saraf. I tried and failed 😦 Well done all. There seems to be only one solution to the puzzle. I … Continue reading
Puzzle #142: Bills and Two Hats
This one is a simple problem, is a variation of a probability puzzle posted about 3 years back – try it with your teenage children! This one is again taken from The Colossal Book of Short Puzzles and Problems by … Continue reading
Solution to Puzzle #140: Traffic Flow in Floyd’s Knob – Version 2
Tough problem for most – I got only one correct answer – Suman Saraf – well done! I only knew one solution, but Suman sent a small variation of the same answer, so here are both the solutions: E,E,S,S,E,N,N,N,E,S,W,S,E,S,S,W,W,W,W,N,N,E,S,W,S,E,E,E,E,N,E E,E,S,S,E,N,N,N,E,S,W,S,E,S,S,W,W,W,W,N,E,N,W,S,S,E,E,E,E,N,E … Continue reading
Alok Goyal's Puzzles Page 