Strings

i. `Computer Science`

ii. `Scien`

iii. `Cmue cc`

iv. `e`

v. `Computer ScienceComputer Science`

vi. `ecneiS retupmoC`

vii. `Computer Science`

viii. `cOMPUTER sCIENCE`

ix. `True`

x. `False`

i. `wz-1,new ganga nagar,new delhi`

ii. `WZ-1,NEW GANGA NAGAR,NEW DELHI`

iii. `2`

iv. `5`

v. `21`

vi. `['WZ-1', 'New Ganga Nagar', 'New Delhi']`

vii. The book text appears to have a printing error in `split(' '')`. Interpreting it as splitting by space, the output is `['WZ-1,New', 'Ganga', 'Nagar,New', 'Delhi']`.

viii. `WZ-1,Old Ganga Nagar,Old Delhi`

ix. `('WZ-1', ',', 'New Ganga Nagar,New Delhi')`

x. `ValueError: substring not found`

```python
text = input("Enter text: ")

chars = len(text)
alphabets = 0
digits = 0
special = 0
words = 0

for ch in text:
if ch.isalpha():
alphabets += 1
elif ch.isdigit():
digits += 1
elif ch != ' ':
special += 1

if text != '':
words = text.count(' ') + 1

print("Total characters:", chars)
print("Total alphabets:", alphabets)
print("Total digits:", digits)
print("Total special symbols:", special)
print("Total words:", words)
```

```python
def titleCase(st):
newstr = ''
word = ''
for ch in st:
if ch == ' ':
newstr += word.capitalize() + ' '
word = ''
else:
word += ch
newstr += word.capitalize()
return newstr

st = input("Enter a string: ")
print(titleCase(st))
```