## Brain Teaser

Question In this game of Nim, Abdi and Suri are playing with one heap of 11 stones and another heap of 9 stones. The game is playe

SolveQuestion To celebrate the end of exams, three couples met for a dinner. They’re about to take seats at a round table for six

SolveQuestion This figure includes 20 line segments. Using these rules: you can start at any intersection on the figure, you can

SolveQuestion Ada, Bella, Colette, and Delia are about to stand in a row, and Bella and Colette want to stand next to each other. What

SolveQuestion Clara left the house and realized that she forgot her keys. She asked her sister Daria to throw them from the balcony at

SolveQuestion You are trying to decide if you should play the following game: You are given $5 for free. You keep flipping a fai

SolveQuestion Jerome has two empty containers: a 16-liter and an 18-liter container. He needs to measure out exactly 10 liters i

SolveQuestion Matilda’s aquarium contains ten fish. For a science project, she randomly takes out one fish, marks it, and puts it

SolveQuestion The Minotaur is imprisoned at the center of a maze called the Labyrinth. To pass the time, he’s taken up a hobby: e

SolveQuestion You have two empty containers — one that holds 9 liters and the other that holds 11.25 liters. Using these moves

SolveQuestion You have two containers — one that measures 75 milliliters and one that measures 90 milliliters. You can do any

SolveQuestion What is the minimum number of colors required to fill the regions of this graph so that no two adjacent (sharing the same

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