Puzzles asked in QA Interviews
1. How to cut a cake into 8 almost equal slices in three attempts?
1. How to cut a cake into 8 almost equal slices in three attempts?
2. You have two ropes and a lighter. Each rope has the following property: If you light one end of the rope, it will take one hour to burn to the other end. They don't necessarily burn at a uniform rate. How can you measure a period of 45 minutes?
3. There are 5 lanes on a race track. One needs to find out the 3 fastest horses among total of 25 horses. Find out the minimum number of races to be conducted in order to determine the fastest three
4. You pull out 2 balls, one after another, from a bag which has 20 blue and 13 red balls in total. If the balls are of similar colour, then the balls are replaced with a blue ball, however, if the balls are of different colours, then a red ball is used to replace them. Once the balls are taken out of the bag, they are not placed back in the bag, and thus the number of balls keep reducing. Determine the colour of last ball left in the bag.
5. There are 2 jugs with 4 ltrs and 5 ltrs of water respectively. The objective is to pour exactly 7 ltrs of water in a bucket. How it can be achieved?