Brain Teaser

Question You have one container that holds 8 liters and another that holds 12 liters. You can do any of the following: Completely

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Question Angles of the same color are identical. What is the measure of the blue angle? 10° 20° 30° 40° 50°

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Question A lune is an area formed by two circles. When two circles intersect, two lunes are formed: the non-intersecting portions

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Question 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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Question Angles of the same color have the same measure. What is the measure of the green angle? 2 4 5 6 8

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Question You have one container that holds 9 liters and another that holds 12 liters. The smaller container already has 4 liters o

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Question A three-legged creature has an unorganized sock drawer with 4 red socks, 6 blue socks, and 8 yellow socks. The creature r

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Question Three rectangles have areas of 72, 80, and 130. We arrange them so they overlap, as shown. What is the total shaded area?

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Question Using the rules below, you’d like to be able to trace the figure. You can start at any intersection point on the fi

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Question Lin, Malik, Nia, Ophelia, and Pradeep live on different streets in the same neighborhood.   The following informatio

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Question All circles in the dartboard have the same center. Each circle has half the radius of the previous circle. The colors alt

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Question Two squares with side lengths 4 and 6 are arranged side by side. Which value is the closest to the area of the yellow reg

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