Answer:
I walked and walked and at last I got it. I didn't want it. So I stopped and looked for it. When I found it, I threw it away.
Only two backbones and thousands of ribs.
Until I am measured I am not known, Yet how you miss me when I have flown.
The more you take, the more you leave behind.
Plant whose name sounds like a dish full of dairy spread.
I am your mother's brother's only brother in law. Who am I?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?