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

A non-stop marathon is the shared favourite sport of three brothers.

*The oldest one is fat and short and trudges slowly on.
*The middle brother's tall and slim and keeps a steady pace.
*The youngest runs just like the wind, speeding through the race.

"He is young in years, we let him run!" the other two brothers explained, "'because though he is surely number one, he is second, in a way." Why is it?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

What do you answer even though it never asks you questions?

What is the difference between a jeweller and a jailer?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

I’m tall when I’m young, and I’m short when I’m old. What am I?