Brain Teaser
Question At any given point, the derivative of a function tells us its graph’s slope at that point. Given the function graph
SolveQuestion One of the three instructions below is a repetition of another. Given positive numbers A and B, you can rearrange all thr
SolveQuestion Daisy, Evie, Faye, Gwen, and Harry are comparing the numbers of students in their classes. These statements are all true:
SolveQuestion Geoff and Tetsu are playing a game in which they take turns removing cards from a deck of 16 cards. These are the rules:
SolveQuestion The top two scales shown are balances. How many circles will balance one triangle and one square? 3 4 5 6
SolveQuestion All of the ornaments hanging from this mobile have the same mass. Is the mobile balanced? Yes No It isn’t possible to d
SolveQuestion Two ants sit at the base of a cylindrical can with height 6 cm and circumference 16 cm. They want to get to the point at
SolveQuestion In this circle, a few angles are formed by two diameters and one additional radius. Which angle is larger, blue or yellow
SolveQuestion Two friends start playing a game with a token in the bottom-left corner of the grid. The game ends when the token reaches
SolveQuestion Pictured are a regular hexagon and the same hexagon stellated into a star. If the area of the hexagon is A, what is the a
SolveQuestion Dashed arrows mean to add. If each of the seven circles contains a unique non-negative integer, how many values can the m
SolveQuestion The lower base of this trapezoid is three times as long as its upper base. The area of the yellow triangle equals 45. Wha
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