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

Count the number of squares in the picture below.

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

What is the word or phrase?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

Guess the hidden movie name?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

Out of four images which one is the odd one out?