Do You See It?

What is the next number in this matchsticks series riddle?

Why are all black people so quick ?

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?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

I am a number I am not an odd number I am higher than 90 I am not higher than 100 If you subtract me from 100, you get nothing. What number am I?

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

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

why?