When you do not know what I am, then I am something. But when you know what I am, then I am nothing.

Question

I'm something. I'm nothing.
I am short. I am tall.
When you fall at your sport, then I stumble and fall.
I have never been seen beneath a new moon.
I thrive in the evening but vanish at noon.
I am lighter than air, I weigh less than a breath;
darkness destroys me, and light is my death.
What am i?

Answer 1

A Riddle.. do let me know if its correct

Comments

Hi, well-done.. but a riddle is always a riddle. right? Though it's answer is know or not?

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Hi, well-done.. but a riddle is always a riddle. right? Though it's answer is known or not?

Answer 2

The answer is secret.

Answer 3

It's a secret

Answer 4

It's an 'Answer' of any question