Answer:
What kinds of men are always above board?
What tastes better than it smells?
My first is in window but not in pane. My second's in road but not in lane. My third is in oval but not in round. My fourth is in hearing but not in sound. My whole is known as a sign of peace. And from noah's ark won quick release.
What is the heart of many risks, has a heart, but is not a living being?
In Paris but not in France, the thinnest of its siblings.
What is so fragile that saying its name breaks it?