why

Few questions running through my mind..😜

Always wanted to know why,
Blue and not red is the colour of the sky.
Always wanted to know why,
I can't but birds could fly.
Always wanted to know why,
My brother could ride a bike but I wasn't supposed to try.
Always wanted to know why,
The reason behind a baby's cry
Always wanted to know why,
There s no disparity as to who will die.
Always wanted to know why,
The oceans were full and the wells are dry.
Always wanted to know why,
People always to see others smile, they lie.
Always wanted to know why,
I couldn't find answers to these, Alas, I sigh....!!