Direction : What value should come in place question mark(?) in the following questions?

4 × 5² – 3² × 7 + 6²=?+24

A rational number between $${3\over4} $$ and $${3\over8} $$ is :

Two numbers are such that their difference, their sum and their product is in the ratio of 1: 7: 24. The product of numbers is

The mean of 20 items is 55. If two items 45 and 30 are removed, what will be the new mean of the remaining items?

What will be come in place of question mark(?) in the following number series?
8,  14, 25, 46, 82 , ?

The sum of all natural numbers between 100 and 200. Which are multiple of 3 will be: 

A man spends  $${1\over 3}$$ of his income on food,   $${2\over 5}$$  of his income house rent and   $${1\over 5}$$ of his income on clothes. If he still has Rs. 400 left with him, his income is: 

What will be come in place of question mark(?) in the following number series?
14, 8, 7 , 11.5, 22, ?