Brain Teaser
Question Shown are two squares of the same size. They’ve each been divided into many smaller squares. Which of the two large
SolveQuestion Which of these expressions is larger? 100! × 100! 99! × 101!
SolveQuestion What is the minimum number of matchsticks that must be removed from this arrangement to leave exactly two squares?
SolveQuestion Which of these is the best fit to complete the pattern shown?
SolveQuestion Andrei and Cristina would like to drink some tea, but they don’t want to wait too long for it to cool down. They bo
SolveQuestion A smartphone releases some energy as heat just as you do, but it has much less capacity to control its temperature: if a
SolveQuestion What is the least number of guards needed to completely guard this gallery of bovine art? The guards cannot move,
SolveQuestion There are four people living in four differently colored houses, and every one of them has a different pet. Annie
SolveQuestion In this puzzle, is Jasper a human or a werewolf? Each of these three Londoners is either a human or a werewolf. Humans al
SolveQuestion Nalani and Violet are treating themselves to ice cream at their favorite Jen & Berry’s. First, they choose one
SolveQuestion You play a casino game with these rules: You roll a six-sided fair die. If you roll a non-6, you win the value of
SolveQuestion Sleepy the Cat was napping in a tree when he fell down. He landed on the ground — on all four feet, of course — with
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