Answer:
I'm blue at day and black at night. I do contain some creatures born and died. What am I?
A single syllable do I claim black was my most famous name; Fetal to mortals here below thousands have I slain in a single blow.
Two bodies have I, though both joined in one. The more I stand still the faster I run. What am I?
I go up and I go down, towards the sky and the ground. Iβm present and past tense too, letβs go for a ride, me and you. What am I?
I repeat only the last word you say. The more I repeat, the softer I got. I cannot be seen but can be heard. What am I?
If I say "everything I tell you is a lie", am I telling you the truth or a lie?