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

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

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?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

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

Can you find the missing piece of the Porsche?