Questions About Nature

Why is the sky silvery, gray and blue?
How many stars are in the universe?
Can the grains of sand be counted?
Who arranged the colours of the rainbow?
What makes the sea stop at the shore?
Will the water keep flowing from the springs?
Where did the flowers get their beauty?
Why does time go on indefinitely?
Are human beings a unique life form?
Is there another planet with life like earth?
Which creature was created first?
Why are the other animals not intelligent?
When did the cycle of life begin?
And when will it finally come to an end?
Does anybody know the correct answers?