## 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

Solve

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

Solve

Question 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,

Solve

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

Solve

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

Solve

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

Solve

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

Solve

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

Solve

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

Solve

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

Solve

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

Solve

Question 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

## Become a Member

Join the MIT Club of Nothern California today!

Member is open to all MIT graduates.