Question: In a country in which people only want boys, every family continues to have children until they have a boy. If they have a girl, they have another child. If they have a boy, they stop. What is the proportion of boys to girls in the country? . . C A P T A … Continue reading Misogynist country
Question: N persons are standing in a circle. They are labeled from 1 to N in clockwise order. Every one of them is holding a gun and can shoot a person on his left. Starting from person 1, they starts shooting in order e.g for N=100, person 1 shoots person 2, then person 3 shoots person 4, then person … Continue reading Mad men in a circle
Question: John and Matt decide to play a game using a deck of cards. The game involves flipping two cards at a time. If both cards are black, they go into John’s pile and if both cards are red, they go into Matt’s pile. If one card is red and one card is black, they … Continue reading Card Pairology?
Question: John has some chickens that have been laying him plenty of eggs. He wants to give away his eggs to several of his friends, but he wants to give them all the same number of eggs. He figures out that he needs to give 7 of his friends eggs for them to get the … Continue reading Chickens
Question: Five men and a leopard were shipwrecked on a desert island, and they spent the first day gathering coconuts for food, piled the coconuts all up together, and then went to sleep for the night. But when they all were asleep one man woke up,and he divided the coconuts into five piles. He had … Continue reading Five men and a leopard
Question: King Octopus has servants with six, seven, or eight legs. The servants with seven legs always lie, but the servants with either six or eight legs always say the truth. One day, 4 servants met: The blue one says: “Altogether we have 28 legs”; The green one says: “Altogether we have 27 legs”; The … Continue reading King Octopus