subroutine quiz

def greeting():
    name=""
    print ("Welcome to the BLAH BLAH QUIZ.")
    while (len(name)==0):
        name=input("Enter name")
    print("Hi",name,"Let's begin!")
    questions()

def questions():
    score=0
    question1=input("What is the capital of Germany?")
    if question1 == "Berlin":
        print ("correct")
        score+=1
    else:
        print ("Incorrect")