Read the following sentences to find out whether there is any grammatical error or idiomatic error in it. The error, if any, will be in one part of the sentence….

If ‘yellow’ is called ‘red’, ‘red’ is called ‘blue’, ‘blue’is called…

Pointing to a photograph of a boy Suman said, “He is the son of the only son of my mother.” How is Suman related to that boy ?