##Question:1 Write a Python function to calculate the factorial of a number (a non-negative integer). The function accepts the number as an argument.
##Question:2 Write a Python function that accepts a string and calculate the number of upper case letters and lower case letters.
##Question:3 Write a Python function to print the even numbers from a given list.
##Question:4 Write a Python function that checks whether a passed string is palindrome or not. Note: A palindrome is a word, phrase, or sequence that reads the same backward as forward, e.g., madam
##Question:5 Write a Python function that takes a number as a parameter and check the number is prime or not.
##Question: 6 Suppose a customer is shopping in a market and you need to print all the items which user bought from market. Write a function which accepts the multiple arguments of user shopping list and print all the items which user bought from market.
###(Hint: Arbitrary Argument concept can make this task ease)