### 1. Print Numbers from 1 to 10

**Problem:** Print numbers from 1 to 10.
**Example Output:**

```
1 2 3 4 5 6 7 8 9 10

```

***

### 2. Sum of First N Natural Numbers

**Problem:** Calculate the sum of numbers from 1 to N.
**Example Input:** `N = 5`
**Output:** `15`

***

### 3. Print Each Character in a String

**Problem:** Print each character of a string.
**Input:** `"Python"`
**Output:**

```
P y t h o n

```

***

### 4. Print Even Numbers from 1 to 20

**Problem:** Print only even numbers between 1 and 20.
**Output:**

```
2 4 6 8 10 12 14 16 18 20

```

***

### 5. Print List Elements Using Loop

**Problem:** Display all elements from a list using a loop.
**Input:** `["apple", "banana", "cherry"]`
**Output:**

```
apple
banana
cherry

```

***

### 6. Reverse Counting from 10 to 1

**Problem:** Print numbers from 10 down to 1.
**Output:**

```
10 9 8 7 6 5 4 3 2 1

```

***

### 7. Print Multiplication Table of a Number

**Problem:** Take a number and print its multiplication table up to 10.
**Input:** `3`
**Output:**

```
3 x 1 = 3
3 x 2 = 6
...
3 x 10 = 30

```

***

### 8. Find the Factorial of a Number

**Problem:** Find the factorial of a given number.
**Input:** `5`
**Output:** `120`

***

### 9. Print Digits of a Number (Using while loop)

**Problem:** Display each digit of a number separately.
**Input:** `1234`
**Output:**

```
4
3
2
1

```

***

### 10. FizzBuzz

**Problem:** Print numbers 1–20 but:

* Print “Fizz” if divisible by 3
* Print “Buzz” if divisible by 5
* Print “FizzBuzz” if divisible by both
  **Output Example:**

```
1
2
Fizz
4
Buzz
...
FizzBuzz

```

***

### 11. Sum of Even Numbers in a List

**Problem:** Calculate the sum of all even numbers in a list.
**Input:** `[1, 4, 7, 10, 12]`
**Output:** `26`

***

### 12. Count Vowels in a String

**Problem:** Count the number of vowels in a given string.
**Input:** `"Python is fun"`
**Output:** `4`

***

### 13. Print Numbers Divisible by 4 and 6

**Problem:** Print numbers from 1 to 50 divisible by both 4 and 6.
**Output:**

```
12 24 36 48

```

***

### 14. Cumulative Sum of List

**Problem:** Print cumulative sum at each step from a list.
**Input:** `[2, 5, 3, 7]`
**Output:**

```
2 7 10 17

```

***

### 15. Print Multiples of 3 and 5

**Problem:** Print numbers between 1–50 divisible by 3 or 5.
**Output Example:**

```
3 5 6 9 10 12 ... 45 48 50

```

***

### 16. Reverse a String

**Problem:** Print a string in reverse.
**Input:** `"Python"`
**Output:** `nohtyP`

***

### 17. Find Numbers with Even Digits

**Problem:** Print numbers from 1–100 that have an even number of digits.
**Output Example:**

```
10 11 12 ... 99

```

***

### 18. Find the Maximum Number in a List

**Problem:** Find the largest number in a list.
**Input:** `[5, 12, 3, 21, 7]`
**Output:** `21`

***

### 19. Count Digits and Letters in a String

**Problem:** Count letters and digits separately in a string.
**Input:** `"Python3.8"`
**Output:**

```
Letters: 6
Digits: 2

```

***

### 20. Fibonacci Numbers Less Than N

**Problem:** Print all Fibonacci numbers less than a given number N.
**Input:** `N = 20`
**Output:**

```
0 1 1 2 3 5 8 13

```

***

### 21. Print Odd Numbers in a List

**Problem:** Print all odd numbers from a given list.
**Input:** `[2, 7, 4, 9, 12, 15]`
**Output:** `7 9 15`

***

### 22. Count Uppercase and Lowercase Letters

**Problem:** Count the number of uppercase and lowercase letters in a string.
**Input:** `"Python Is Fun"`
**Output:**

```
Uppercase: 3
Lowercase: 8

```

***

### 23. Print Squares of Numbers

**Problem:** Print squares of numbers from 1 to N.
**Input:** `N = 5`
**Output:**

```
1 4 9 16 25

```

***

### 24. Print Cubes of Numbers in a List

**Problem:** Print cubes of numbers from a given list.
**Input:** `[1, 2, 3, 4]`
**Output:**

```
1 8 27 64

```

***

### 25. Print Numbers Divisible by 7 but Not by 5

**Problem:** Print numbers from 1–100 divisible by 7 but not by 5.
**Output Example:**

```
7 14 21 28 ... 91 98

```

***

### 26. Print Factorials of Numbers in a List

**Problem:** Print factorial of each number in a list.
**Input:** `[3, 4, 5]`
**Output:**

```
6 24 120

```

***

### 27. Count Words in a Sentence

**Problem:** Count the number of words in a given sentence.
**Input:** `"Python is fun to learn"`
**Output:** `5`

***

### 28. Print Prime Numbers from 1 to N

**Problem:** Print all prime numbers from 1 to N.
**Input:** `N = 20`
**Output:**

```
2 3 5 7 11 13 17 19

```

***

### 29. Sum of Digits of Numbers in a List

**Problem:** Print sum of digits for each number in a list.
**Input:** `[12, 34, 56]`
**Output:** `3 7 11`

***

### 30. Check Palindrome Numbers in a List

**Problem:** Print all numbers from a list that are palindromes.
**Input:** `[121, 123, 454, 567, 787]`
**Output:** `121 454 787`

 Calculate the sum of numbers from 1 to N.

 Print only even numbers between 1 and 20.

 Display all elements from a list using a loop.

7. Print Multiplication Table of a Number

 Take a number and print its multiplication table up to 10.

9. Print Digits of a Number (Using while loop)

 Display each digit of a number separately.

 Calculate the sum of all even numbers in a list.

 Count the number of vowels in a given string.

 Print numbers from 1 to 50 divisible by both 4 and 6.

 Print cumulative sum at each step from a list.

 Print numbers between 1–50 divisible by 3 or 5.

 Print numbers from 1–100 that have an even number of digits.

 Count letters and digits separately in a string.

 Print all Fibonacci numbers less than a given number N.

 Print all odd numbers from a given list.

22. Count Uppercase and Lowercase Letters

 Count the number of uppercase and lowercase letters in a string.

 Print cubes of numbers from a given list.

25. Print Numbers Divisible by 7 but Not by 5

 Print numbers from 1–100 divisible by 7 but not by 5.

26. Print Factorials of Numbers in a List

 Print factorial of each number in a list.

 Count the number of words in a given sentence.