## Brain Teaser

Question The neuron below has 4 inputs: two positive (green) and two negative (pink). We can make different logic gates by using d

SolveQuestion What is the sum of the measures of the three pink angles, ∠A+∠B+∠C? 90∘ 100∘ 110∘ 120∘ Like these puzzles?

SolveQuestion In a circle puzzle, dashed arrows mean to add and solid arrows mean to multiply. Only integers are allowed. What number g

SolveQuestion Which of these can be formed by taking cross-sections of a donut (torus) like the one shown? Select one or more: A B C D

SolveQuestion The length of all the blue segments is 5. The length of all the yellow segments is 6. The length of all the orange segmen

SolveQuestion The cards shown have colored hearts, numbers, or letters printed on them on either side. How many cards need to be turned

SolveQuestion Here is an algorithm to check whether a sequence is already sorted (it is not a sorting algorithm): Starting from the lef

SolveQuestion The green, leaf-shaped area shown is the region of overlap between two circles of radius 2 that are centered, respectivel

SolveQuestion A rectangle is inscribed in a right triangle. What is the area of the orange rectangle? 27 30 35 36 The area cannot be de

SolveQuestion You need to make one liter of 60% alcohol solution, but you only have 30% and 70%. How much of the 70% solution do you ne

SolveQuestion Mei and Yuri are playing a subtraction game, with the following rules: Together, they select a positive integer N. The fi

SolveQuestion In the candy-making process, sugars like glucose and sucrose transform in a process called caramelization to make harder,

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