What word begins and ends with an E, but has only one letter?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

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

These types of puzzles are known as charades. What you have to do is find two words that are referred to in the first stanza and the second stanza and put them together to form the third word in the third stanza.

Just for example, if my first refers to 'off' and my second refers to 'ice', then my whole will be office.

My first is present - future's past -
A time in which your lot is cast.

My second is my first of space
Defining people's present place.

My whole describes a lack of site -
A place without length, breadth, or height.

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

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

O_er_t_o_

Complete the missing letters of the given word.

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

What demands an answer, but asks no questions