Answer:
Drop me and the world will shatter. You can always find me where you empty your bladder. What am I?
Die without me, never thank me. Walk right through me, never feel me. Always watching, never speaking. Always lurking, never seen. What am I?
Railroad Crossing, look out for the cars. Can you spell that, without any R's?
I am the only word that looks the same when spelled upside down.
I have a little pool with two layers of wall around it. One white and soft and the other dark and hard. Amidst a light brown grassy lawn with an outline of a green grass.
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.