Four usual dice are thrown on the ground. The total of the numbers appearing on the top sides of these four dice is $13$ as the top sides showed $4, 3, 1 \mathrm{and} 5,$ respectively. What is the total of the numbers appearing on the sides touching the ground (In a usual die, the sum of the opposite sides is $7$)?

How many blocks are used in the picture given below?

Assuming that all the blocks are of the same size, how many blocks are there in the picture given below?

How many blocks are there in the picture given below?

A cube is painted black in all the sides, and then cut into small cubes such that each side of a small cube is ${\frac{1}{3}}^{\mathrm{rd}}$ of the original size. Consider the following statements relating to the small cubes: 

$1.$ There are $36$ small cubes. 
$2$. There are$6$ small cubes with one side painted black.
$3$. There are $2$ small cubes with opposite sides painted black.

Which of the above given statement(s) is/are correct?

Three different positions of the given dice are shown below. Find the number on the side opposite to the side showing $3$?

The unbiased dice is thrown twice as shown in the given below. Which number is on the side opposite to the side showing $6$?

An unbiased dice is thrown $4$ times as shown in the figure given below. Which number is on the side opposite to side showing $2$?