Write a suitable C Program to accomplish the following tasks.

Task $1$: Write a $C$ program that adds all even numbers between $0$ and $100$ using a while loop.

Task $2$: use repetition structure to write a program that asks the user to enter $10$ positive numbers. Then the program should display the sum of the numbers entered. $($Use do$-$while$).$

Task $3$: Write a program that uses for loop structure to perform the following:

Prompt the user to input two integers: first$\_$num and second$\_$num $($first num must be less than second$\_$num$).$

Output all odd numbers between first$\_$num and second$\_$num.