## Brain Teaser

Question Which of these two lattice triangles has the larger area? A has the larger area. B has the larger area. A and B have the

SolveQuestion Pete and Dave are neighbors. They use identical bricks to build fences around their square-shaped yards. Pete uses 1,000

SolveQuestion You’re driving at a speed of 10 m/s toward a traffic light 60 m away when it turns yellow. It will turn red in 5 s,

SolveQuestion 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

Solve