Complete the table series riddle by finding the number that can replace "??".

Jack and Joseph are well-known golf rivals. One Day during a match, they were level at a score of 30. Jack hit a bad shot and Joseph added 10 to his score. Joseph then hit an awesome shot and he won the game.

How ?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

Why is the longest human nose just 11 inches?

Which is the smallest number that you can write using all the vowels exactly once?

Can you make a six-letter word using the letters N, A and B ?

You are a prisoner sentenced to death. The Emperor offers you a chance to live by playing a simple game. He gives you 50 black marbles, 50 white marbles, and 2 empty bowls. He then says, 'Divide these 100 marbles into these 2 bowls. You can divide them any way you like as long as you use all the marbles. Then I will blindfold you and mix the bowls around. You then can choose one bowl and remove ONE marble. If the marble is WHITE you will live, but if the marble is BLACK... you will die.'

How do you divide the marbles up so that you have the greatest probability of choosing a WHITE marble?

What word is pronounced the same if you take away four of its five letters?

Take one out and scratch my head, I am now black but once was red. What am I?

Can you replace the question mark with the correct number?