Tutorial Python beginner's project (Quiz Game)

Code:
# text based Quiz Game
 
 # making a variable to store total marks
 marks = 0
 
 # Greet the user if he/she wants to play
 answer = input("Do you want to play? ")
 if  answer.lower() == 'yes':
     print("Let's Start the game")
 else:
     print("Ok come back next time!")
     exit()
 # Asking the first question 
 answer = input("Who invented the BALLPOINT PEN? ")
 
 # lower() coverts the each alphabet
 # of string into lower case
 if  answer.lower() == 'biro brothers':
     print("Correct")
 # if user give correct answer increment marks by 1
     marks += 1
 else:
     print("Incorrect")
 
 answer = input("What J. B. Dunlop invented? ")
 if  answer.lower() == 'pneumatic rubber tire':
     print("Correct")
     marks += 1
 else:
     print("Incorrect")
 
 answer = input("What Galileo invented? ")
 if  answer.lower() == 'thermometer':
     print("Correct")
     marks += 1
 else:
     print("Incorrect")
 
 answer = input("This English inventor is known as the 'Father of Computing.' ")
 if  answer.lower() == 'charles babbage':
     print("Correct")
     marks += 1
 else:
     print("Incorrect")
 
 answer = input("For whom high heeled shoes were invented? ")
 if  answer.lower() == 'King Louis':
     print("Correct")
     marks += 1
 else:
     print("Incorrect")
 
 # Decisions based on marks 
 if marks < 2:
     print("Try again")
 # elif short for if else
 elif marks <= 3:
     print("You tried better")
 
 elif marks > 3:
     print("Good job you did it Congrats")
 
 # Printing the percentage of correct answers
 print("You got " + str((marks/5) * 100) + "% marks")