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?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Decode the movie name from the below picture?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

I make two people out of one. What am I?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

If Bihan is 10, Anirudha is 20, and Kim and Seal are both 5, but Rikold is 10, how much is Kenniger by the same trend?

How many times in a given day, minutes and hour clock comes in a straight line ?

I am the fastest animal but cannot climb the tree. What am I?

Make a sentence consisting of three words that have the whole alphabet.