The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

What has a ring but no finger?

I can be made.
I can be cracked.
I can be told.
I can be played.

Who am I?

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

why?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

What is the word or phrase?

I look at you, you look at me I raise my right, you raise your left. What am I?

Below, you can see some coding:
January = 1017
February = 628
March = 1335
April = 145
May = 1353
June = 1064
July = 1074
August = 186

Now deciphering the way it has been coded, can you find out how September will be coded?

There is a certain crime, that if it is attempted, is punishable, but if it is committed, is not punishable. What is the crime?