An astronaut named Mark, arrived to mars to collect some rock samples for earth. He collected 3 unique types of stones. Igneous rock, sedimentary...
You have a 2 containers. Container A: 3 liters in volume. Container B: 5 liters in volume. There is another container which is 4 liters in...
A man sits in a jail. It has four walls, a big wooden door and a small open window high in the room beyond reach. An old man is trapped inside....
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