A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

Can you start the fire using two pieces of wood?

I have Rs.50 and I spend it in the way as below.

Identify the 10 differences between the two given pictures.

I have two coins.
* One of the coins is a faulty coin having a tail on both sides of it.
* The other coin is a perfect coin (heads on side and tail on other).

I blindfold myself and pick a coin and put the coin on the table. The face of the coin towards the sky is the tail.

What is the probability that another side is also tail?

Before Balboa discovered the Pacific Ocean, which was the largest ocean before that?

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable