Replace the question mark with the correct number below.

John and Jill are madly in love with each other. To remind Jill of his pure love, John wants to send her a ring by post but in their country where burglary is quite prominent, any package that is not locked comes under the risk of being stolen for the contents.

John and Jill possess many padlocks but neither one of them has the other key.

Can you find a way John can send the ring to Jill safely?

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Identify the 10 differences between the two given pictures.

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

Find the next number in the series.
1 10 24 43 67 ?

What is the Surname of Barbie Doll?