What is the centre of gravity?

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

I’m tall when I’m young, and I’m short when I’m old. What am I?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

I have teeth but i don't bite. Who Am I ?