Answer:
Turn us on our backs and open up our stomachs you will be the wisest of men though at start a lummox.
I am a span of time you can always see through I am also the timepiece with the most pieces. What am I?
You throw me out when you want to use me and you take me in when you don't want to use me. Who am I?
Put into a pit, locked beneath a grate, guarded through the night, yet it still goes out.
What can't you see, hear or feel, until its too late. What shadows love, and shopkeepers hate?
I am your mother's brother's only brother in law. Who am I?