Merge pull request #61 from prakhartiwari0/numbers-generation-logic

This PR will solve the problem of repeating questions and ensuring that the number of questions input by the user is less than or equal to the number of possible combinations of a range of numbers inclusive of the maximum number and minimum number. There is a label text showing to enter no. of questions below 56 if the user chooses
very easy as the difficulty level, else it will not be shown.

Author: prakhartiwari0