Exercise 1: Variable Naming and Assignment

Write a Python program that defines variables for storing a person's name, age, and country of residence. Ensure the variable names follow Python's naming conventions.

Exercise 2: Basic Input/Output

Create a program that asks the user for their name and age, then prints a message saying how old they will be in 5 years. 

Exercise 3: Arithmetic Expressions

Write a program that takes two numbers from the user and prints the result of their addition, subtraction, multiplication, and division. 

Exercise 4: Conditional Letter Grades

Develop a program that prompts the user for a score (0-100). Based on the score, output the corresponding letter grade (A, B, C, D, F), following a standard grading scale. 

Exercise 5: Temperature Converter

Implement a program that converts temperature from Fahrenheit to Celsius. The user should enter the temperature in Fahrenheit, and the program should output the temperature in Celsius. 

Exercise 6: Simple Interest Calculator

Write a Python script that calculates simple interest given the principal amount, rate of interest, and time period.

Use the formula:

            simple_interest = (principal * rate * time) / 100

Exercise 7: Swapping Two Variables

Create a program that demonstrates swapping the values of two variables using multiple assignment. The initial values should be input by the user.

Exercise 8: User Input Validation

Develop a program that continuously prompts the user for a number between 1 and 10. The program should not terminate until the user inputs a valid number within the specified range.

Exercise 9: Basic Calculator for Two Numbers

Implement a simple calculator that takes two numbers and an operator (+, -, *, /) as input from the user, then prints the result of the operation.

Exercise 10: Debugging Practice

Given a piece of code that is supposed to calculate the average of three test scores but contains errors, identify and correct the errors to ensure the program runs correctly.

score1 = input("Enter score 1: ") score2 = input("Enter score 2: ") score3 = input("Enter score 3: ") average = (score1 + score2 + score) / 3 print("The average score is: ", average)