why does ur stuffs seems better than mine?

ever since i was small, i always thought about strange question to keep myself thinking

-why butterfly name as BUTTERfly which it has nothing to do with butter (maybe they taste buttery when u crunching them)
-manue which aren't manufactered by man
-why isn't there cow-pie in the menu while chicken-pie is there
-why does adult always tells u that "u will know it when u grows up" as u want the answer now
-why does the wheel of the road sometimes spins backward and the vehicle is moving forward (i will explain this next time)
-why dont people wear shirt with 7 colours on it (for a children, colourful = nice)
-where will the end of the road leads to? (in fact, there isnt an end of the roads)

-why do us exist? and live? how? how come? is there a reason? purpose? where will we go?

all these answer are defers from people, and each ones has to find their way and choose their path.
may u have the courage to do so