You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

What is the coolest letter in the alphabet?

Can you count the number of squares in the figure below?

Do you know who was buried in John's tomb?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

Can you solve this picture maths equation?

Can you find the 09 errors in the picture below?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?