Riddle: I am visible in the sun but not rain, I am as small as a mouse or as big as a train, I am all different shapes of sizes but only one colour, I am silent and can go anywhere but only exist in one place at a time, one or another. What am I?
Riddle: What may look sulky but never cries, what is living but dead at the same time, what is black always but colourful always and helps us tell the time?