What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Decode below rebus
D
N
A
T
S , D

Can you solve this picture maths equation?

You are given 16 witch hats. The hats are divided in four different colours – red, blue, green and yellow. Every colour has been assigned to four hats. Now each of the hat will be glued with a label of an arithmetic sign – ‘+’, ‘-‘, ‘x’ or ‘/’. But you can label one sign only once on one colour. In such an arrangement, the hats can be uniquely defined by its colour and symbol.

Can you arrange all the 16 hats in a 4x4 grid in a fashion that no two rows and columns have a repetition of colour or sign?
We have arranged four hats in the below picture to assist you.

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

There is a movie name hidden in the picture that is attached with this question. Can you find out which movie is it?

How many triangles are there on the puzzle below?