Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

What you cannot hold but it is yours?

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

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

How can you write nineteen in a manner that if we take out one, it becomes twenty?

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?

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

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?

If a wheel has 54 spokes, how many spaces are there between the spokes?

How many times can you subtract the number 5 from 25?