Can you replace the question mark with the correct number?

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?

We are a group of eight brothers. We consider the weak, yet we protect the king in every battle. If we move ahead, we never turn back. Who are we?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

Identify The phrase in the picture.

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

A mother bought three dress for her triplets daughters(one for each) and put the dresses in the dark. One by one the girls come and pick a dress.
What is the probability that no girl will choose her own dress?