What has one letter and starts with an E?

Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

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

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

The dirtier I get, the whiter I look. Who am I?

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

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?

Do You See It?

Fate has decided that you will only be pleased to meet me when you need me

Maybe that is why, when I am working, I start working

However annoying I may be to the regulars, the little ones are always inspired

I will always be waiting if you try to reach me

How many of you can guess my name, let me see