Why did the Girl throw the butter out of the window?

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Name a key which is hardest to turn.

What Deficiency does the below rebus represent?

VIT_MIN

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?