How to get the number of filled questions?

Is it possible to calculate/count and display how many values are filled in at the beginning of the form?

The only way to calculate the number of filled fields is to add a new, empty field underneath each question. Then, using conditional logic, check if the field is filled. If it is, you need to insert 1 into the empty field. Otherwise, you insert 0.

In the end, you can add Calculation fields, and add all fields of your form. 

Please let us know if you have any additional questions.