What has one letter and starts with an E?

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

What you cannot hold but it is yours?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

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

What has many keys but can’t open a single lock?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

If a wheel has 54 spokes, how many spaces are there between the spokes?

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