PinnedShelvia50 Challenging Problems in ProbabilityTo keep a record of all the “50 Challenging Problems in Probability” I’ve posted, I have compiled a list of them here and grouped them…Nov 29, 20231Nov 29, 20231
PinnedShelviaBrain TeasersTo keep a record of all the brain teasers I’ve posted, I have compiled a list of them here and categorized them. Hope you’ll find it…Nov 28, 2023Nov 28, 2023
ShelviaBrain Teaser 32: Chocolate BarCan you solve this puzzle? A chocolate bar has 6 rows and 8 columns (48 small 1 x 1 squares). You break it into individual squares by…Jun 254Jun 254
ShelviaBinary Operation TableCan you solve this puzzle of binary operation table from OpenAI?Jun 24Jun 24
ShelviaNew Scientist’s Brain Twister 18: The Arithmetical Two-StepCan you solve this interesting puzzle? You must take two steps to get from a given number to make 10. Each step must change the number by…Jun 241Jun 241
ShelviainIntuition50 Challenging Problems in Probability [Part 31]: Birthday PairingsCan you solve this interesting puzzle? What is the least number of persons required if the probability exceeds 1/2 that two or more of themJun 232Jun 232
ShelviainIntuitionBrain Teaser 32: Coin Split ProblemCan you solve this interesting puzzle? You split 1000 coins into two piles and count the number of coins in each pile. If there are x coinsJun 221Jun 221
ShelviainIntuition50 Challenging Problems in Probability [Part 30]: Evening the SalesCan you solve this problem? A bread salesman sells on the average 20 cakes on a round of his route. What is the chance that he sells an…May 10May 10
ShelviaBrain Teaser 31: Chameleon ColorsCan you solve this interesting puzzle? A remote island has three types of chameleons with the following population: 13 red chameleons, 15…May 93May 93