An eye for detail will help you to answer the four questions.
The number of the question plays a decisive role. For example you need the second letter of the solution for the second question. For the 5th question you have to use the alphabet to find the solution.
If you combine the first letters of the relevant solution with the number in the question you use MUSIC, FOUR, DANCE, WINE & Y (25 minutes until the bell rings at Y in the alphabet) to get the final solution: MONEY