Infinite, because the question is not finite/logical. You will get a better answer if you mention the actual task you want to perform and how to do it.

NaN or 01111111110000000000000000000000 (binary representation by IEEE-754).

If its a pathogenic or likely pathogenic variant. Most probably different tools will give you the same prediction.

If its VOUS, you have to prove the pathogenicity.

1. Segragating the variant within a minimum of 10 family members.

2. Expression analysis.

3. Western blot.

4. Protein Modeling.

best wishes,

Umair