The more you take me, the more you leave me behind.
Who Am I?

What is the riddle which can be asked all day with a different correct answer each time.

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

I am white when I am dirty, and black when I am clean. What am I?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?