Q1). What is a `for` loop in Python?

A `for` loop is used to iterate over items of a sequence (like a list, tuple, or string). Example: 

fruits = ['apple', 'banana', 'cherry']
for fruit in fruits:
    print(fruit)
Output:
apple
banana
cherry

Q2). How does a `while` loop work in Python?

A `while` loop repeatedly executes a block of code as long as a condition is true. Example: 

i = 0
while i < 5:
    print(i)
    i += 1
Output:
0
1
2
3
4

Q3). How do you use `break` in a loop?

The `break` statement exits the loop immediately. Example: 

for i in range(10):
    if i == 5:
        break
    print(i)
Output:
0
1
2
3
4

Q4). What does `continue` do in a loop?

The `continue` statement skips the current iteration and moves to the next one. Example: 

for i in range(5):
    if i == 3:
        continue
    print(i)
Output:
0
1
2
4

Q5). How can you iterate over a list with indices?

Use `enumerate()` to get both index and value. Example: 

for index, value in enumerate(['a', 'b', 'c']):
    print(index, value)
Output:
0 a
1 b
2 c

Q6). How do you loop through a list of lists?

Use nested loops. Example: 

for sublist in [[1, 2], [3, 4]]:
    for item in sublist:
        print(item)
Output:
1
2
3
4

Q7). How do you loop through a list of dictionaries?

You can use `for` loops to access each dictionary and its values. Example: 

data = [{'name': 'Alice'}, {'name': 'Bob'}]
for entry in data:
    print(entry['name'])
Output:
Alice
Bob

Q8). How do you use `range()` in a loop?

`range()` generates a sequence of numbers. Example: 

for i in range(3):
    print(i)
Output:
0
1
2

Q9). How do you find the maximum value in a list using a loop?

Use a loop to compare each item. Example: 

my_list = [10, 20, 4, 45, 99]
max_value = my_list[0]
for num in my_list:
    if num > max_value:
        max_value = num
print(max_value)
Output:
99

Q10). How do you handle nested lists with list comprehension?

Use nested comprehensions. Example: 

lists = [[1, 2], [3, 4]]
flattened = [item for sublist in lists for item in sublist]
print(flattened)
Output:
[1, 2, 3, 4]

Q11). How do you loop through a dictionary’s keys and values?

Use the `items()` method. Example: 

my_dict = {'key1': 'value1', 'key2': 'value2'}
for key, value in my_dict.items():
    print(key, value)
Output:
key1 value1
key2 value2

Q12). How do you use a `while` loop?

`while` loops continue as long as the condition is true. Example: 

count = 0
while count < 5:
    print(count)
    count += 1
Output:
0
1
2
3
4

Q13). How do you break out of a loop?

Use the `break` statement. Example: 

for i in range(10):
    if i == 5:
        break
    print(i)
Output:
0
1
2
3
4

Q14). How do you continue to the next iteration of a loop?

Use the `continue` statement. Example: 

for i in range(5):
    if i == 3:
        continue
    print(i)
Output:
0
1
2
4