TypeError: string indices must be integers

[snippsat]

There is not need need(a bad way) to make a varibale i at start an use it at index later.
Just loop over the dictionary like this.

quiz = {
    'What is the fastest land animal?': 'Cheetah',
    'What is Pi?': 3.14
    }

for key, value in quiz.items():
    #print(key, value)
    print(f"Question {key} answer is: {value}")

Output:
Question What is the fastest land animal? answer is: Cheetah
Question What is Pi? answer is: 3.14