What does below chemistry rebus means?

Find the value of "?" in the ball picture Riddle below:

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

You can see it everyday, But cannot touch it at will. What is it?

Can you spot the hidden girl in the picture below?