## Brain Teaser

Question The four triangles’ areas are labeled. There are two rectangles in the figure, and every triangle side length is an

SolveQuestion In a circus, acrobats use a teeterboard to catapult each other into the air, performing somersaults and twists before lan

SolveQuestion A 21×34 rectangle with semicircles joined to each side is inscribed in a circle. Which area is larger? The area of the r

SolveQuestion The six smaller rectangles are labeled by their areas, and they all have integer sides. Which of the following could be t

SolveQuestion The people of the nation Brilliantia are trying to find the length of their coastline. Unfortunately, their coast is jagg

SolveQuestion Dashed arrows mean addition, solid arrows mean multiplication, and the circles must be filled with integers. Which

SolveQuestion Each shape in this puzzle represents a numerical value. The number next to each row or column represents the sum of all o

SolveQuestion Sara’s little brother broke her favorite fan and now it’s a bit deformed. The angles AFB and BFC are e

SolveQuestion Chris and Daniel have a deck of 15 cards. It consists of 12 black cards and 3 red cards consecutively placed at a random

SolveQuestion In this cryptogram, different letters correspond to different digits, and leading digits cannot be 0. What digit i

SolveQuestion If this mobile is balanced, what’s the total mass of the four ornaments? 8 10 12 15

SolveQuestion Each letter represents a different digit. What is WIN?

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