PERMUTATIONS AND COMBINATIONS | MISCELLANEOUS | Problem Related to Deck of Cards, Polygon Problem, No. of possible Intersection Points between lines ,Circles, No of new lines formed by intersection points of All non parallel lines , No. of square rectangle parallelogram formed when m parallel & n parallel line intersect, No. of 4 letter words chosen from word with repeated letters, Rank of a word SPAIN in Dictionary, Distribution of n things among r persons with all possible scenario, Exponent of any number in n!