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

I’m tall when I’m young, and I’m short when I’m old. What am I?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

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

What has one letter and starts with an E?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

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

What Is It?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?