Answer:
Iβm a word, six letters longΝΎ I sometimes enter with a gong. All in order from A to Z, I start with the letter B. What is the word?
Only one color, but not one size. Stuck at the bottom, yet easily flies. Present in sun, but not in rain. Doing no harm, and feeling no pain.
Die without me, never thank me. Walk right through me, never feel me. Always watching, never speaking. Always lurking, never seen.
It's like food but water kills it. What is it?
I turn around once. What is out will not get in. I turn around again. What is in will not get out.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.