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

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

What is more useful when it is broken?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

Through your logical capabilities, can you make 7 an even?