Answer:
Don't do this in the shallow end.
What comes once in a minute, twice in a moment, but never in a thousand years?
If you happen to wear one of these warm garments around, you might get doused in red paint.
It cannot be seen, cannot be felt, Cannot be heard, cannot be smelt. It lies behind stars and under hills And empty holes it fills. It comes first and follows after, Ends life, kills laughter.
I have one, you have one. If you remove the first letter, a bit remains. If you remove the second, bit still remains. If you remove the third, it still remains.
It's what light turns into in the night