self Maths Puzzle

Using 2,2,2,2,2 make 29

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self Other Question

A thief steals 4 gallons of liquid soap kept in a train compartment's bathroom from a container that is full of liquid soap. He then fills it with water to avoid detection. Unable to resist the temptation he steals 4 gallons of the mixture again, and fills it with water. When a liquid soap is checked at a station it is found that the ratio of the liquid soap now left in the container to that of water in it is 36:13. What was the initial amount of the liquid soap in the container. One grandfather has three grandchildren, two of their young children age difference is 3, eldest child age is 3 times 2nd child's age and eldest child's age is two times of sum of other two children. What is the age of eldest child?