Answer:
I've been around for millions of years, but I am no more than a month old. What am I?
What goes up a chimney down but can't go down a chimney up?
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.
I can be repeated but rarely in the same way. I can't be changed but can be rewritten. I can be passed down, but should not be forgotten. What am I?
I am a word with 5 letters. Bold are the first; true are the second; playful are the third; clever are the fourth; forceful are the fifth.
10 fish are in a tank. 2 Drown, 4 Swim away, and 3 Die. How many are left?