There are three boxes, one contains only apples, one contains only oranges, and one contains both apples and oranges. The boxes have been incorrectly labeled such that no label identifies the actual contents of the box it labels. Opening just one box, and without looking in the box, you take out one piece of fruit. By looking at the fruit, how can you immediately label all of the boxes correctly?
Draw a bridge and you have three people trying to cross? Seriously>
How to find a special weight ball from 8 balls while other 7 have the same weight with a balance? (all same color, shape etc.) Trick is that you don't know if the special ball is lighter or heavier.
You are outside a room. Inside the room there are two light bulbs. One light bulb is on all the time, the other light bulb only turns on when you open the door. How do you determine which light bulb is on all the time?
Another question was: what's the difference between an abstract class and an interface. Can a class inherit both from an abstract class and an interface at the same time?
Create a new string from not repeated letters from the 'something else' string Result: omithingl
How would you test a blender?
how to find the closest 2 number in an array of unique positive number
You have five bottles with pills. One bottle has 9 gram pills, the others have 10 gram pills. You have a scale that can only be used once. How can you find out which bottle contains the 9 gram pills?
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