How many pairs of twin primes are there between the integers $1$ to $100$?

On one side of ': :' two numbers are given and on the other side of '::' also, two numbers are given. There is a definite relation on both the sides out of the options given, you have to find the missing number which satisfies the criteria options are: 

$12 : 35 :: 16 : \_\_\_$

(A) $63$

(B) $49$

(C) $47$

(D) $32$

In the following question, select the related number from the given alternatives.

$354 : 351 :: 478 : ?$

In the following question, select the related number from the given alternatives:

$47 :52 :: 73 : ?$

In the following question, select the related number from the given alternatives:

$24 : 126 :: 48 : ?$

In the following question, select the related number from the given alternatives:

$43 : 66 :: 91 : ?$

$144 : 12 : : ?$

 (A) $80 : 20$

(B) $125 : 25$

(C) $225 : 15$

(D) $99 : 9$

On one side of ': :', two numbers are given and on the other side of ': :' also, two numbers are given. There is a definite relation on both the sides. Out of the given on options, you have to find the number missing in it, so establish a correct relationship.$3:27::4$?

(A) $140$

(B) $80$

(C) $64$

(D) $100$

On one side of ': :' two numbers are given and on the other side of ': :' also, two numbers are given. There is definite relation on both the sides, out of given options. you have to find the number missing in it so that a correct relation be established. 

$3:3\frac{3}{8}::5:$?

(A) $6\frac{3}{8}$

(B) $5\frac{5}{8}$

(C) $5\frac{1}{8}$

(D)$5\frac{3}{8}$

In the following question, select the related number from the given alternatives.

$18636:3106::2508:?$

Some equations are solved on the basis of a certain system. Find out the correct answer for the unsolved equation on that basis.

$9\times 6\times 2=269, 8\times 6\times 5=568, 5\times 4\times 1=?$

On one side of '::' two numbers are given and on the other sides '::' also, two numbers are present. There is a definite relation on both sides. Out of the given options, you have to find the missing numbers which satisfy the following criteria.

$1 : 5 :: 7 : \_\_$

(A) $15$

(B) $9$

(C) $8$

(D) $11$

$12:145::16:$ ?

If $72 - 46 = 7426$ and $68 - 53 = 6583$, then $87- 45$ is equal to:

In the following question, select the related number pair from the given alternatives :

$63 : 36 : : ? : ?$

$43 : 27 :: ? : ?$