Answer:
Fatherless and motherless. Born without sin, roared when it came into the world. And never spoke again.
I am the greatest teacher out of them all, but alas in the end I kill my pupils.
It's got twists and turns, but has no curves. Twist it to fix it, turn it to ruin it. What is it?
Big as a biscuit, deep as a cup, but even a river can’t fill it up. What is it?
What force and strength cannot get through. I, with a gentle touch, can do. Many in the street would stand. Were I not a friend at hand.
When is it bad luck to see a black cat?
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?