You need to fill number in the bricks in the image below such that the top brick is sum of two brick below it.
See below picture for answer
Is it possible to write down 1,2,3..100 in some order (one after an other), such that the sum of any two adjacent numbers is a prime number?
In the image below, you can see two glasses and two matchsticks. You need to move four matchsticks in such a manner that the crosses come inside the glasses.
Note: you cannot move the crossed.
In the figure below, there are 6 squares: 4 small squares, 1 medium-sized square, and 1 large square. There are 9 circles, which will be filled with all the integers 1 through 9 such that the sum of each square is 20.
