Could you please provide python code to;

a. Take a list of integers as input and returns the product of all the list's elements.

b. a. an iterative function of linear complexity (one while or for loop) that returns the sum of the first n positive odd numbers.

c. a. recursive function that will check if a String is a palindrome.

d. Write functions to do an iterative linear search.

e. A function that recursively checks two lists for equality - in terms of their contents.

f. a merge sort function