By using 'because' continuously three times, can you make an English statement ?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

Which alphabet letter is a question?

Can you find out the remainder when 3^300 is divided by 5?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

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?