I shave every day, but my beard stays the same. What am I?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

What number do you get when you multiply all of the numbers on a telephone's number pad?

How can I get the answer 24 by only using the numbers 8,8,3,3?

You can use the main signs add, subtract multiply and divide.

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

There is a place where if I stand up straight, I will still be considered sideways.

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

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

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.