1)

FIND THE VOWEL: 

count=0
vowels="aeiou"
name="mathan"
for every_letter in name:
    if every_letter in vowels:
        count +=1
else:
    print(count)

2)

FIND THE FIRST LETTER AND LAST LATTER: 

sen=input("enter your name:")
print("first letter",sen[0])
print("last letter",sen[-1])

3)

SPACE PERSENT: 

name="s mathan"
for letter in name:
    if letter ==' ':
        print('yes,space is present')

4)

CHECK THE SENTANCE TRUE OR FALSE: 

sen="today is good friday"
print("abcd"not in sen)

print("friday"in the sen)

5)

BREAK STATEMENT 

count=0
vowels="aeiou"
name="mathan"
for every_letter in  name:
    print(every_letter,end='')
    if every_letter=='t':
        break

else:
    print("hi")