12 balls weigh 3 times to find one fake ball. All balls look alike and given only one mechanical balance with no weights. Time to solve 40 minutes.
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This year would surely bring new lights in your life. Happy new year to you all the time.
This is the 13th puzzle session at third level of hardness. This is a difficult puzzle with multiple bottlenecks needed to be overcome and broken through. Digit subset analysis, 2, 3 and 4 cell Cycles and digit lockdown techniques are the primary techniques and resources used for overcoming the bottlenecks. Solution of each step is explained fully...
River crossing puzzle 3 monkeys and 3 humans: To cross river in a small boat that can carry at most 2. Monkeys will eat up humans if more in number...
Move 3 matches to make 3 squares from the Tic Tac Toe matchstick figure. How many unique solutions can you find? Recommended time to solve 5 minutes.