What has one letter and starts with an E?

How many letters are in the alphabet?

I am the fastest animal but cannot climb the tree. What am I?

Can you write down eight eights so that they add up to one thousand?

The more of this there is, the less you see. What is it?

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 know a nine-letter word having only one vowel.
Do you ?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

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

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