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

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

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 don't get anymore wetter, no matter how much rain falls on me.

O_er_t_o_

Complete the missing letters of the given word.

I am beautiful, up in the sky. I am magical, yet I cannot fly. To people I bring luck, and to some people, riches. The boy at my end does whatever he wishes. What am I?

How can you take 2 from 5 and leave 4?

If six children and two dogs were under an umbrella, how come none of them got wet?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

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