Do people born blind do facial expressions?

Yes, not only do they use them, but they're often the same universal expressions found in all people and cultures (happiness, sadness, anger, disgust, surprise, shock). 

Not only this, but they also employ similar universal body language (ex: the "victory pose", broadening the chest and throwing hands in the air).

These findings suggest that facial expressions are innate, as there is no way they could have been behaviorally learned, seeing the number of blind people who use them.
What is a very good workout to gain muscles in my shoulder?

Shoulders are unique in that it's the transition between your push muscles (chest, shoulders and triceps) and your pull muscles (back, shoulders and biceps). In order to get bigger, stronger shoulder muscles, concentrate on doing heavy weights for your bigger muscles, i.e. bench press for

How many hanging leg raises do I have to do to get a six pack from 14% body fat?

This is a very good question. But you can only get abs from eating absolutely right. And from cardio and some compound exercise. If you are eating right then you will have six pack abs very quickly, you don't have to do a lot. If you are not

What are the best ways to become academically smarter?

Cognitive skills like Memory, Attention Span, Concentration, Decision Making, Evaluative Thinking, Logical Thinking are the key skills which help an individual across multiple aspects of day to day functioning be it Academic or non-academic. There are a lot of apps which will help you do so. If games