If eleven plus two equals one, what does nine plus five equal?

What can you hold in your right hand, but never in your left hand?

Can you find the 09 errors in the picture below?

This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?

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?

The answer I give is yes, but what I mean is no. What was the question?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

Jigsaw captured 100 people and make them stand in a circle and all these people are labelled as Person1, Person2, Person3... Person100. He made them play a crazy game in which Person 1 shot Person 2 and pass the gun to the next person and so on until one stands alive.

Which person will survive in the end?

In a fruit store, there was a unique weighing machine that was made to weigh only cherries and strawberries as they were priced the same.

Other fruits like watermelons or mango had different machines as they were expensive.

A man successfully buys watermelons at the price of cherries. How?