A father's child, a mother's child, yet no one's son.

Who am I?

Who can jump higher than a Mountain?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

People are waiting in line to board a 100-seat aeroplane. Steve is the first person in the line. He gets on the plane but suddenly can't remember what his seat number is, so he picks a seat at random. After that, each person who gets on the plane sits in their assigned seat if it's available, otherwise, they will choose an open seat at random to sit in. The flight is full and you are last in line. What is the probability that you get to sit in your assigned seat?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

What has a bottom at the top?

When is the top of a mountain similar to a savings account?