In a basket of apples,
when counted in twos, there was one extra
when counted in threes, there were two extra when counted in fours, there were three extra
when counted in fives, there were four extra
when counted in sixes, there was five extra.

However, if the apples were counted in sevens, no extra apple was left. Can you calculate the minimum number of apples that were present in the basket?

Prove that the below maths equation is true.

8 + 8 = 91

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

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?

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?

How can a man go eight days without sleep?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Which is faster, Heat or Cold ? Explain.

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?