Answer:
What can bring back the dead. Make us cry, make us laugh, make us young. Born in an instant yet lasts a life time?
Come up and let us go. Go down and here we stay.
Some try to hide, some try to cheat. But time will show, we always will meet. Try as you might, to guess my name. I promise you'll know, when you I do claim.
Put into a pit, locked beneath a grate, guarded through the night, yet it still goes out.
Don't do this in the shallow end.
I am your mother's brother's only brother in law. Who am I?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?