Answer:
I am the kind of ant that's good at math.
Some will use me, others not. Some have remembered, others forgot. For profit or gain, I'm used expertly. I can't be picked off the ground or tossed into the sea. What am I?
In a tunnel of darkness lies a beast of iron. I can only attack when pulled back. What am I?
I am a word. I become longer when the third letter is removed. What am I?
Why are there no living cats on Mars?
When is it bad luck to see a black cat?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic