It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

Find the missing number in the sequence below:

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?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number 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?

In a family supper, a grandfather, a grandmother, two fathers, two mothers, four children, three grandchildren, one brother, two sisters, two sons, two daughters, one daughter-in-law, and one mother-in-law need to sit at a table.

There are only seven chairs available at the place. How many more chairs do they have to borrow so that everyone can sit down together for the suppers if everybody requires a separate chair?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?