Answer:
I'm an old relative who's hand's can't hold anything and eyes can’t see anything
I am a protector. I sit on a bridge. One person can see right through me while others wonder what I hide.
A dagger thrust at my own heart dictates the way I'm swayed. Left I stand and right I yield to the twisting of the blade. What am I?
What tastes better than it smells?
The letter S is added to pluralise most words in the English language. eg. Letter to Letters Word to Words and Language to Languages. But I am a word that is pluralised with the addition of the letter C.
A mysterious, fantastic creature, It has one defining feature, And for humans at their worst, In their eyes it's just a horse