When we see 2 but call 10?

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 part of Turkey has the most feathers?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

A woman shoots her husband.

Then she holds him under water for over 5 minutes.

Finally, she hangs him.

But 5 minutes later they both go out together and enjoy a wonderful dinner together.

How can this be?

What can go through glass without breaking it?

Which digit occurred maximum times between the number 1 and 1000?

Eight of us go fourth, not back, to protect our king from an attack. What are we?